Frederic Leopold letter to A.S. Hawkins regarding hunting and the effect on duck populations, January 13, 1988
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Correspondence
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Birds--Conservation Birds--Habitat Hunting--Moral and ethical aspects Wildlife habitat improvement Waterfowl management Duck populations
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1988-01-13
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N/A
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Manuscript, graphic, and printed material
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Letter from Frederic Leopold to A.S. Hawkins regarding hunting and the effect on duck populations, January 13, 1988. The letter voices reasons why Leopold disagrees with the theory of unsuitable habitats as a cause for the declining duck population. F. Leopold references his brother, Aldo Leopold, and his book "Game Management" as well as the philosophy of limiting factors. F. Leopold expresses his belief that spending more money on habitat improvement will not produce more ducks and the best solution would be to have less hunting of ducks.
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Leopold, Frederic, 1895-1989
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Wood Duck
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Burlington
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Frederic Leopold Papers | MS 113
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2
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12
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Letter to I.T. Bode regarding Waterfowl conditions that might affect Iowa, January 3, 1934
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Correspondence Reports
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Bird surveys Birds--Counting Fowling Water levels Waterfowl
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1934-01-03
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N/A
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Manuscript, graphic, and printed material
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Letter to I.T. Bode dated January 3, 1934. The letter's author, an Assistant Biologist for the Bureau of Biological Survey, expresses his appreciation for the assistance he received while in Iowa. Included with this letter is part of the Waterfowl Survey for 1933, including the section that pertains to Iowa.
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United States. Bureau of Biological Survey
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Iowa South Dakota North Dakota Wisconsin Minnesota
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Philip A. Dumont Papers | MS 153
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3
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21
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Bery Engebretsen letter to Ross Silcock regarding bird sightings during winter 1991, February 24, 1992
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Correspondence Field notes
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Bird watching Birds--Identification Rare birds Waterfowl
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1992-02-24
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N/A
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Manuscript, graphic, and printed material
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Field reports in the form of a letter from Bery Engebretsen to Ross Silcock sent on February 24, 1992. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of winter 1991-1992.
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Engebretsen, Bery
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Bald Eagle Black-legged Kittiwake
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Saylorville Lake
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Iowa Ornithologists' Union | MS 166
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24
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4
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Field reports, Steve Dinsmore, fall 1990
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Correspondence Field notes
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Bird watching Birds--Behavior Birds--Identification Birds--Migration Charadriiformes | Shore-birds, Gulls, and Auks Waterfowl
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1990-08-01
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1990-11-30
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Manuscript, graphic, and printed material
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Field reports submitted by Steve Dinsmore with several contributors and a detailed note about the sightings as well as a letter from Steve Dinsmore to Carl Bendorf on November 30, 1990. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1990.
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Dinsmore, Stephen J.
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Double-crested Cormorant Red-breasted Merganser Herring Gull Common Loon Hooded Merganser Bufflehead Bonaparte's Gull Common Merganser
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Iowa Saylorville Lake
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Iowa Ornithologists' Union | MS 166
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24
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3
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Iowa Birdline update, March 14 and 16, 1994
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Correspondence Field notes
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Bird watching Birds--Migration Waterfowl Dial-a-message telephone calls
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1994-03-14
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1994-03-16
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Manuscript, graphic, and printed material
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Email for the Iowa Birdline update for March 14, 1994. Highlights include Mountain Bluebird, Iceland Gull, Evening Grosbeak and Varied Thrush. Includes update for March 16, 1994.
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Iowa Ornithologists' Union Fuller, James L
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Rusty Blackbird Varied Thrush Mountain Bluebird Evening Grosbeak Northern Goshawk American Woodcock Iceland Gull Hooded Merganser Northern Mockingbird Greater White-fronted Goose
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Cone Marsh Wildlife Management Area Greene County Iowa City Madison County Saylorville Lake Mount Vernon Boone County Fairfield Roberts Creek Park Don Williams Lake
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Iowa Ornithologists' Union | MS 166
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42
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5
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Iowa RBA, March 11-24, 1996
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Correspondence Field notes
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Bird feeders Bird watching Birds--Identification Anseriformes | Ducks, Geese, and Swans Waterfowl Dial-a-message telephone calls
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1996-03-11
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1996-03-24
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Manuscript, graphic, and printed material
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Iowa RBA update for March 11-24, 1996. Highlights of the update include sightings of a female White-winged Scoter, a first year Glaucous Gull, Thayer's Gulls and a female White-winged Crossbill.
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Iowa Ornithologists' Union Fuller, James L
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Thayer's Gull Mountain Bluebird White-winged Crossbill Common Redpoll Trumpeter Swan Greater Yellowlegs White-winged Scoter Glaucous Gull Tundra Swan Northern Shrike
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Cone Marsh Wildlife Management Area Hidden Bridge Wildlife Area Lock and Dam 14 Squaw Creek Regional Park Green Island Heron Bend Conservation Area Cosgrove
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Iowa Ornithologists' Union | MS 166
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43
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3
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