Title Genres Topics Date (Start) Date (End)
Field notes and letter to Thomas H. Kent from René Laubach regarding a Mourning Warbler sighting, spring 1983 Correspondence Field notes Forms (documents) Reports Bird watching Birds--Counting Birds--Identification Birds--Research Ornithology--Methodology Parulidae | Warblers Emberizidae | Sparrows 1983-05-31 N/A