Documents • Iowa State University • Avian Archives of Iowa Online

Title	Genres	Topics	Date (Start)	Date (End)	Type	Description	Creator/Author	Birds	Locations	Locality	Habitat	Remarks

Iowa RBA, December 6-12, 1999	Correspondence Field notes	Bird watching Birds--Identification Dial-a-message telephone calls	1999-12-06	1999-12-12	Manuscript, graphic, and printed material	Emails of Iowa RBA updates for December 6-11, 1999. Highlights of the updates include sightings of a Yellow-billed Loon, Prairie Falcon, Varied Thrush, Lesser Black-backed Gull, and White-winged Crossbills. Includes seven Iowa RBA update emails and an email from Francis L. Moore regarding the Yellow-billed Loon.	Iowa Ornithologists' Union Fuller, James L	Prairie Falcon Thayer's Gull Yellow-billed Loon Varied Thrush White-winged Crossbill Snowy Owl Black Scoter Northern Goshawk Lesser Black-backed Gull Sandhill Crane	Little Wall Lake Polk County Saylorville Lake Spirit Lake West Okoboji Lake Fairmont Cemetery Fairfield Badger Creek State Recreation Area Fenton Fort Des Moines Park				Iowa Ornithologists' Union \| MS 166	44	4
Rare bird documentation form for Lesser Black-backed Gull at Jester Park, 1999	Field notes	Birds--Identification Ornithology Rare birds	1999-12-06	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Jester Park in Polk County, IA on December 6, 1999.	Brees, Aaron	Lesser Black-backed Gull	Jester Park	Jester Park, Campground 4		The documentation form by Aaron Brees is the only one submitted and forms the basis of this record. \| Elimination of similar species: Herring Gull was eliminated by structure, wing pattern, and tail pattern. California Gull was eliminated by bill coloration and tail pattern. Thayers Gull was eliminated by wing pattern, structure, and over all color.	Iowa Ornithologists' Union \| MS 166	34	36
Sighting record listing, Iowa, 6/1/1999 - 7/31/1999, Dave Killman	Field notes	Bird watching Birds--Nests	1999-12-06	N/A	Manuscript, graphic, and printed material	An annotated list of birds sighted by Dave Killman dated December 6, 1999. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Killman, Dave	Least Flycatcher Indigo Bunting Henslow's Sparrow Eastern Towhee Carolina Wren Orchard Oriole Ruddy Turnstone Scarlet Tanager Great Egret	Hawkeye Wildlife Management Area Jefferson County Lacey-Keosauqua State Park Lake Darling State Park Van Buren County Fairfield Jefferson County Park Lake Sugema				Iowa Ornithologists' Union \| MS 166	28	5
Records Committee review for rare bird sighting of Ferruginous Hawk at Hichcock Nature Area, 1999	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1999-12-05	2000-11-28	Rare birds documentation form	Records Committee review of a Ferruginous Hawk at Hitchcock Nature Area in Pottawattamie County, IA on December 5, 1999. Includes a record review document with votes and a documentation form submitted to the committee.	Orsag, Mark	Ferruginous Hawk	Hitchcock Nature Area	Hitchcock Nature Area (Lodge Hawkwatch Point)	Loess Hills / Missouri River Valley. The bird was coming from out of the valley. It crossed the wooded ridges of HNA and headed southeast.	The documentation form by Mark Orsag is the earliest and the one that forms the basis of this record. \| Elimination of similar species: I considered 5 other species of raptor in total. I eliminated two possibilities (Rough-legged Hawk and Northern Harrier) within seconds of seeing the bird in question. I eliminated two others (Bald Eagle [imm.], and Red-tailed Hawk more or less during the minute or so that I had the bird in view. ** I reviewed, in my head, the fine points of the Krider's Red-tailed Hawk for a few seconds after the bird had disappeared from view. The fifth species came to mind just before I started writing this report (the next day). I retroactively eliminated it. In reconstructing my reasoning, I believe: Rough-leg was eliminated due to the unmarked white throat, breast, underwings, and underside. Northern Harrier was eliminated due [sic] the large size and robust shape of the bird, the flight pattern (especially wingbeat), the unstreaked white throat, etc. Immature Swainson's Hawk later eliminated by dark head, white wing patches on primaries, lack of dark flight feathers on underwing, unlikelihood of December sighting. Bald Eagle immature- (whitebelly I-II) was eliminated by the downpushing wingbeat, the colors of the bird's dorsal surface, the lack of a contrast on the dorsal surface between the brown-gray forward part of the wing and the darker flight feathers (a little known good fieldmark for Immature BE), and the confining of the white coloration to the primaries, etc. Red-tailed Hawk-This species, in light of its similar (but smaller) size and variable plumages, posed the greatest problems. The dark upper surface, dark head, pointed wings, and pattern of flight (dihedral in glide posture), as well as the distinct and identical nature of the white markings on the upperwings and the lack of patagial marks, "commas", or other dark markings on the underside, were considered in total and used to rule out the immature light-morph Red-tail and, on reflection, a partial albino Red-tail. Krider's Red-tailed Hawk was the toughest to rule out. Here are my reasons: 1. Krider's heads appear white/light in contrast to the darker (gray or brown) color of the back. This bird's head was not lighter in color (on top) than the back. Back coloring was too dark (brown-reddish) for Krider's-no white mottling seen. Wings were pointed not rounded. No 'headlight' fieldmark [sic] was seen and the 'points of light' fieldmark [sic] was. Dihedral in glide unusual but not impossible for a Red-tail, but the wingbeat (fluid and downpushing rather than centered on the downstroke at the wrist) did not look like a Red-tailed's. \| The original documentation form event lasted from 09:00:00/09:01:00.	Iowa Ornithologists' Union \| MS 166	9	1
Iowa RBA, December 3, 19-24, 1999	Correspondence Field notes	Bird feeders Bird watching Birds--Identification Dial-a-message telephone calls	1999-12-03	1999-12-24	Manuscript, graphic, and printed material	Six emails of Iowa RBA updates for December 3, 19-24, 1999. Highlights of the updates include sightings of a Yellow-billed Loon, Long-tailed Duck, Bullock's Oriole, Black Scoter, and a Thayer's Gull.	Iowa Ornithologists' Union Fuller, James L	Thayer's Gull Yellow-billed Loon Bullock's Oriole Evening Grosbeak Long-tailed Duck Black Scoter Ruby-crowned Kinglet Golden-crowned Kinglet Greater White-fronted Goose Northern Shrike	Little Wall Lake Elk Horn Rathbun Lake Red Rock Dam Saylorville Lake Ada Hayden Heritage Park Wildlife Research Station				Iowa Ornithologists' Union \| MS 166	44	4
Field report, fall 1999, Thomas Kent	Field notes	Bird watching	1999-12-03	N/A	Manuscript, graphic, and printed material	An annotated list of birds sighted by Thomas Kent dated December 3, 1999. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Kent, Thomas H. (Thomas Hugh), 1934-	Little Blue Heron Brewer's Blackbird Nelson's Sharp-tailed Sparrow Brown Pelican Arctic Tern Dunlin Sabine's Gull Yellow-bellied Flycatcher White-rumped Sandpiper Pine Siskin Sandhill Crane Laughing Gull American Golden Plover	Coralville Lake Hickory Hill Park Lake Red Rock Palo Alto County Snake Creek State Game Management Area Spirit Lake Fairmont Cemetery Green Island Wildlife Management Area				Iowa Ornithologists' Union \| MS 166	28	5
Pam Allen letter to Thomas Kent regarding Yellow-billed Loon slides, December 3, 1999	Correspondence Field notes	Photography of birds	1999-12-03	N/A	Manuscript, graphic, and printed material	Letter from Pam Allen to Thomas Kent dated December 3, 1999. Allen states that she is sending three slides taken by Reid Allen of a Yellow-billed Loon at Little Wall Lake. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Allen, Pam	Yellow-billed Loon	Little Wall Lake				Iowa Ornithologists' Union \| MS 166	28	5
Records Committee review for rare bird sighting of Yellow-billed Loon at Little Wall Lake, 1999	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1999-12-02	2000-11-28	Rare birds documentation form	Records Committee review for a Yellow-billed Loon at Little Wall Lake in Hamilton County, IA on December 2, 1999. Includes a record review document with votes, a print of four photos, and six documentation forms submitted to the committee.	Kent, Thomas H. (Thomas Hugh), 1934-	Yellow-billed Loon	Little Wall Lake	Little Wall Lake, Hamilton Co., IA	Natural lake in glaciated area. All open water.	The documentation form by Thomas H. Kent is the earliest and the one that forms the basis of this record. Other documentation forms by Jim Fuller, Chris Edwards, Jim Dinsmore, Stephen J. Dinsmore, and Mark Proescholdt were submitted later. Other observers include Kevin Healy, Dick Tetrault, Reid Allen, Pam Allen, Eloise Armstrong, Eugene Armstrong, Beth Proescholdt, Kay Niyo, Eric Haley, and Hank Zaletel. \| Elimination of similar species: The size and thick bill exclude Red-throated and Pacific Loons. The features that favor Yellow-billed over Common Loon include the bill shape, dark line to mid culmen, small eye, auricular patch, and the pattern of the foreneck and face (little extension of white and mottled color). The back pattern (wavy white lines rather than fuzzy white lines with dark bars) and paleness of the auricular patch indicate a juvenile. \| The original documentation form event lasted from 07:45:00/09:00:00.	Iowa Ornithologists' Union \| MS 166	7	8
Karl Jungbluth letter to Thomas Kent regarding fall reports, December 2, 1999	Correspondence Field notes	Bird watching Photography of birds	1999-12-02	N/A	Manuscript, graphic, and printed material	Letter from Karl Jungbluth to Thomas Kent dated December 2, 1999. Jungbluth lists the birds he has sighted around Boone. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Jungbluth, Karl	Cooper's Hawk Rose-breasted Grosbeak Carolina Wren Purple Finch Common Nighthawk Olive-sided Flycatcher Spotted Towhee Red-breasted Nuthatch Tennessee Warbler	Boone				Iowa Ornithologists' Union \| MS 166	28	5
IOU field reports form, fall 1999, Douglas Harr	Field notes	Bird watching Weather	1999-12-01	N/A	Manuscript, graphic, and printed material	An annotated list of birds sighted by Douglas Harr dated December 1, 1999. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Harr, Douglas C.	Bald Eagle Grasshopper Sparrow Loggerhead Shrike Black-bellied Plover Red-breasted Nuthatch Red-bellied Woodpecker Black-headed Gull Northern Shrike Great Egret	Spirit Lake Waterman Prairie Wildlife Management Area Ocheyedan Welch Lake Wildlife Management Area Rock Sioux Access Lebanon				Iowa Ornithologists' Union \| MS 166	28	5
Ann Johnson, fall '99	Field notes	Bird watching	1999-12-01	N/A	Manuscript, graphic, and printed material	An annotated list of birds sighted by Ann Johnson dated December 1, 1999. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Johnson, Ann	American Avocet American Bittern White-eyed Vireo Arctic Tern Yellow-bellied Flycatcher Red-necked Phalarope Red-breasted Nuthatch Winter Wren	Jester Park Norwalk Saylorville Dam Wapello County Dubuque County Sandpiper Recreation Area				Iowa Ornithologists' Union \| MS 166	28	5
Fall 1999 report, John Van Dyk	Field notes	Bird watching Icteridae \| Blackbirds, Orioles, Meadowlarks, and allies Parulidae \| Warblers Weather	1999-12-01	N/A	Manuscript, graphic, and printed material	An annotated list of birds sighted by John Van Dyk dated December 1, 1999. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Van Dyk, John, 1936-	Bald Eagle Purple Finch Osprey Olive-sided Flycatcher Red-breasted Nuthatch Greater White-fronted Goose Barn Swallow	Hawarden Sioux Center Sioux County Oak Grove State Park Doon				Iowa Ornithologists' Union \| MS 166	28	5
Iowa RBA, November 29-December 4, 1999	Correspondence Field notes	Bird watching Birds--Identification Dial-a-message telephone calls	1999-11-29	1999-12-04	Manuscript, graphic, and printed material	Emails of Iowa RBA updates for November 29 to December 4, 1999. Highlights of the updates include sightings of Pomarine Jaeger, White-winged Crossbill, Surf Scoter, Pacific Loon, and a Yellow-billed Loon. Includes seven Iowa RBA update emails and two emails to the IA-BIRD list regarding a Varied Thrush and a Pacific Loon.	Iowa Ornithologists' Union Fuller, James L	Ruffed Grouse Red-shouldered Hawk Pomarine Jaeger Yellow-billed Loon Varied Thrush White-winged Crossbill Common Redpoll Pacific Loon Common Yellowthroat Surf Scoter	Little Wall Lake Hitchcock Nature Area Iowa City Yellow River State Forest Fairmont Cemetery West Des Moines Pool 19 Silver Lake Fenton				Iowa Ornithologists' Union \| MS 166	44	4
Sighting record listing, Iowa, 8/1/1999-11/28/1999, Bery Engebretsen	Field notes	Bird watching	1999-11-28	N/A	Manuscript, graphic, and printed material	An annotated list of birds sighted by Bery Engebretsen dated November 28, 1999. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Engebretsen, Bery	American Avocet Red-throated Loon Blue-winged Teal Purple Finch Black-crowned Night Heron Wood Duck Peregrine Falcon Greater White-fronted Goose Buff-breasted Sandpiper	Jester Park Polk City Saylorville Lake Paul Errington Wildlife Management Area Sandpiper Recreation Area Terra Lake				Iowa Ornithologists' Union \| MS 166	28	5
Records Committee review for rare bird sighting of Jaeger species at Hitchcock Nature Area, 1999	Administrative records Field notes	Bird watching Ornithology Ornithology--Societies, etc	1999-11-24	2000-11-28	Rare birds documentation form	Records Committee review for a Jaeger species bird at Hitchcock Nature Area in Pottawattamie County, IA on November 24, 1999. Includes a record review document with votes and two copies of a documentation form submitted to the committee.	Orsag, Mark	Jaegers	Hitchcock Nature Area	Hitchcock Nature Area Hawkwatch	Missouri River Valley Floodplain	The documentation form by Mark Osrag is the only one submitted and forms the basis of this record. Other observers include Sue Mattix. \| Elimination of similar species: Dark immature gulls were eliminated by flight pattern, body-to-wing shape profile (as above), and the well seen identical translucent patches on the wings. Other jaeger species were eliminated by the bird's size. It thermalled above a wetland area beyond HNA's 'Westridge' with a group of Ring-billed Gulls. Size comparison was perfect-revealing a noticeably larger, heavier-bodied bird. \| The original documentation form event lasted from 14:45:00/14:55:00.	Iowa Ornithologists' Union \| MS 166	10	13
Iowa RBA, November 22-25, 1999	Correspondence Field notes	Bird watching Birds--Identification Dial-a-message telephone calls	1999-11-22	1999-11-25	Manuscript, graphic, and printed material	Four emails of Iowa RBA updates for November 22-25, 1999. Highlights of the updates include sightings of two Black-billed Magpies, Lesser Black-backed Gull, Red Crossbill, Eurasian Collared Doves, and a Pomarine Jaeger.	Iowa Ornithologists' Union Fuller, James L	Pomarine Jaeger Varied Thrush Eurasian Collared Dove Black-billed Magpie Lesser Black-backed Gull Common Yellowthroat Chipping Sparrow Red Crossbill Northern Shrike American Golden Plover	Cardinal Marsh State Wildlife Area Grinnell Hitchcock Nature Area West Okoboji Lake Westfield Little Clear Lake Park West Des Moines Spring Run Complex Wildlife Management Area Fenton				Iowa Ornithologists' Union \| MS 166	44	4
Rare bird documentation form for Lesser Black-backed Gull at Manhattan Point at West Okoboji Lake, 1999	Field notes	Birds--Identification Ornithology Rare birds	1999-11-21	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Manhattan Point at West Okoboji Lake in Dickinson County, IA on November 21, 1999.	Kenne, Matthew C.	Lesser Black-backed Gull	Manhattan Point	West Okoboji Lake, Dickinson Co., 21 Nov 1999		The documentation form by Matthew Kenne is the only one submitted and forms the basis of this record. Other observers include Lee Schoenewe. \| Elimination of similar species: The bird was standing on Manhattan Point with several Herring Gulls of various ages and many more Ring-billed Gulls, facing quarter-on towards Lee Schoenewe and I. It was a dark 1st year gull, similar to, but slightly smaller than, other 1st year Herring Gulls present. It had an all black bill that was smaller than the other Herrings. [...] Lee and I waited for about 10 minutes for the bird to turn to the side, showing us blackish wingtips and dark tertials, eliminating the Thayer's Gull possbility we had been considering. The wing tips extended farther beyond the body than on the Herring Gulls. [...] There was no pale 'window' in the inner primaries as in a Herring Gull. \| The original documentation form event occurred in the early afternoon for approximately 10 minutes.	Iowa Ornithologists' Union \| MS 166	34	36
Email from Ric Zarwell to IA-BIRD list regarding a Blue-winged Teal, November 23, 1999	Correspondence Field notes	Birds--Identification Rare birds	1999-11-21	1999-11-23	Manuscript, graphic, and printed material	Email from Ric Zarwell to IA-BIRD list dated November 23, 1999. Zarwell reports the sighting of a Blue-winged Teal at Pool #9 on the Mississippi River at Allamakee County, IA November 21, 1999.	Zarwell, Ric	Blue-winged Teal	Pool 9				Iowa Ornithologists' Union \| MS 166	33	5
Iowa RBA, November 15-20, 1999	Correspondence Field notes	Bird feeders Bird watching Birds--Identification Anseriformes \| Ducks, Geese, and Swans Dial-a-message telephone calls	1999-11-15	1999-11-20	Manuscript, graphic, and printed material	Four emails of Iowa RBA updates for November 15-20, 1999. Highlights of the updates include sightings of two White-winged Crossbills, Red-throated Loon, Black-headed Gull, Lesser Black-backed Gull, Pacific Loon, and a Surf Scoter.	Iowa Ornithologists' Union Fuller, James L	Red-throated Loon White-winged Crossbill Common Redpoll Pacific Loon Merlin Lesser Black-backed Gull Surf Scoter Northern Parula Tundra Swan Black-headed Gull	Johnson County Lake Red Rock Lock and Dam Number 18 Spirit Lake Lock and Dam 9 Osceola Pool 9 Lakeview Recreation Area Gull Point Gowrie				Iowa Ornithologists' Union \| MS 166	44	4
Rare bird documentation form for Northern Parula at Saylorville Reservoir, 1999	Field notes	Birds--Identification Ornithology Rare birds	1999-11-13	1999-11-14	Rare birds documentation form	Rare bird documentation form for a Northern Parula at Saylorville Reservoir in Polk County, IA on November 13, 1999.	Dinsmore, James J.	Northern Parula	Saylorville Lake	visitor's center, Saylorville Reservoir, Polk County	opening in woodland	The documentation form by James Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: The combination of wing bars, eye crescents, and olive on back pretty much eliminate any other warbler. Eye crescents eliminate the remote possibility of a Tropical Parula. \| The original documentation form event occurred around 08:15:00/08:18:00.	Iowa Ornithologists' Union \| MS 166	35	21
Mark Orsag email to Ann Johnson regarding Prairie Falcon sightings, November 11, 1999	Correspondence Field notes	Bird watching Birds--Identification	1999-11-11	N/A	Manuscript, graphic, and printed material	Printout of an email from Mark Orsag to Ann Johnson dated November 11, 1999. Orsag sends Johnson reports on three Prairie Falcon sightings at the Hitchcock Nature Area. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.	Orsag, Mark	Prairie Falcon	Hitchcock Nature Area				Iowa Ornithologists' Union \| MS 166	28	5
Rare bird documentation form for Red-throated Loon at Saylorville Reservoir, 1999	Field notes	Birds--Identification Ornithology Rare birds	1999-11-07	N/A	Rare birds documentation form	Rare bird documentation form for two Red-throated Loons at Saylorville Reservoir in Polk County, IA on November 7, 1999.	Dinsmore, James J.	Red-throated Loon	Saylorville Dam	Saylorville Reservoir, off of west end of dam	freshwater lake	The documentation form by Jim Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bery Engebretsen and Dennis Thompson. \| Elimination of similar species: I spent a long time puzzling over these birds, both in the field and later when I had several references to consult. None of the guides I looked at showed a bird that looked like these. Common (a small one): removed on the basis of size (birds too small for Common Loon), the thinner and bicolored bill, and the color pattern on the neck. At this time of year, all of the Common Loons I have seen (and saw on Saylorville that day) were distinctly white on the front of the neck with some partial bands of brown extending back in to the white. Pacific Loon: Eliminated on behavior (head posture), lack of a distinct dark/white line along the side of the neck, lack of chin straps across neck, and presence of brown on front of neck. Also the gray/brown contrast between neck and back would point away from Pacific but not eliminate it. Red-throated Loon: This is what I first thought the birds were but as I viewed them, I convinced myself several times that they were Pacific Loons. However, the combination of characters listed above seem to eliminate the other two possible species and also are positive characters for the Red-throated Loon. One character that puzzled me was the size of the bill. At least some of the guides (Advanced Birding esp) show the Red-throated Loon as having a tiny bill, much smaller than on this bird but those illustrations do not match those in other guides which emphasize more the shape of the bill than the size. \| The original documentation form event lasted from 07:45:00/08:45:00.	Iowa Ornithologists' Union \| MS 166	32	8
Iowa RBA, November 7-12, 1999	Correspondence Field notes	Bird feeders Bird watching Birds--Identification Laridae \| Gulls and Terns Charadriiformes \| Shore-birds, Gulls, and Auks Calcariidae \| Longspurs and snow bunting Dial-a-message telephone calls	1999-11-07	1999-11-12	Manuscript, graphic, and printed material	Four emails of Iowa RBA updates for November 7-12, 1999. Highlights of the updates include sightings of a Varied Thrush, Pacific Loon, Red-throated Loon, and a Surf Scoter.	Iowa Ornithologists' Union Fuller, James L	Red-throated Loon Brewer's Blackbird Varied Thrush Brown Thrasher Great Horned Owl Common Redpoll Pacific Loon Lesser Black-backed Gull Surf Scoter Northern Shrike	Harrier Marsh Lock and Dam Number 18 Rathbun Lake Whitebreast Recreation Area Fairfield West Des Moines Babcock Access Fenton Trickle Slough				Iowa Ornithologists' Union \| MS 166	44	4
Rare bird documentation form for Red-throated Loon at Saylorville Lake, 1999	Field notes Forms (documents)	Birds--Identification Ornithology Rare birds	1999-11-06	N/A	Rare birds documentation form	Rare bird documentation form for a Red-throated Loon at Clear Lake in Polk County, IA on November 6, 1999.	Engebretsen, Bery	Red-throated Loon	Saylorville Lake	Saylorville Lake	above dam	The documentation form by Bery Engebretsen is the only one submitted and forms the basis of this record. Other observers include Dennis Thompson and Jim Dinsmore. \| Elimination of similar species: Small loon, small head slightly upturned beak and head. White visible on flanks. Faint fleck on dark back at tips of feathers. No chin strap, but from front had faint inverted V. Head, neck brownish/gray. Darker on back of neck, top of hood, much lighter chin, front of neck, sides of neck. \| The original documentation form event lasted from 07:30:00/08:30:00.	Iowa Ornithologists' Union \| MS 166	32	8
Rare bird documentation form for Pacific Loon at Red Rock Reservoir, 1999	Field notes Forms (documents)	Birds--Identification Ornithology Rare birds	1999-11-06	1999-11-10	Rare birds documentation form	Rare bird documentation form for a Pacific Loon at Red Rock Reservoir in Marion County, IA on November 6, 1999.	Proescholdt, Mark	Pacific Loon	Whitebreast Recreation Area	Red Rock Reservoir - (Marion County) - Whitebreast Area	Large reservoir	The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. Other observers include Beth Proescholdt and reported on the Birdline. \| Elimination of similar species: Common Loons have massive bills, are much larger, and have a jagged look to their sides of the neck between dark and light colors. Red-throated Loons are paler in color and do not have that sharp dividing line on its neck but a more gradual merging of colors. \| The original documentation form event lasted from 14:00:00/14:30:00 approximately.	Iowa Ornithologists' Union \| MS 166	32	9