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Martins among rocks and bushes
Abe Nelson
A bit of Lake Itasca from Schoolcraft Island, entrance to East arm in distance
Acrtic Spotted Towhee at Mrs. Rollo Wells' feeder
Acrtic Spotted Towhee at Mrs. Rollo Wells' feeder
Acrtic Spotted Towhee at Mrs. Rollo Wells' feeder
Acrtic Spotted Towhee at Mrs. Rollo Wells' feeder
Acrtic Spotted Towhee at Mrs. Rollo Wells' feeder
Administration Building, Farm School
Adult and young Junco
Adult and young Junco
Adult and young Junco
Adult Junco and young
Adult Junco feeding blueberry to young
Adult Junco feeling young
Agoseris glauca, false dandelion, view of clump
Air sacs, diagrammatic drawing, illustration from William Payne Pycraft, "History of Birds"
Albatross breeding colony, image from "Birds of the World"
Albino Grackle
Albino Grackle
Alder
American Bittern, one young
American Bittern, one young
American Bitterns, four young
American Bitterns in grass, four young
American Bittern's nest
American Bittern's nest
American Bittern's nest
American Bittern's nest and eggs uncovered
American Bittern's nest and eggs uncovered
American Bittern's nest, covered
American Bittern's nest, covered
American Bitterns on nest, young
American Bitterns, young
American Egret nests
American Golden-eye, Barrows, Old Squaw, Bufflehead, illustration, plate 10 in Birds of Minnesota
American, Red-breasted, and Hooded Mergansers, illustration, plate 12 in Birds of Minnesota
American Redstart's nest
American Redstart's nest
American Redstart's nest in grapevine
American Rough-legged Hawk, Ferruginous Rough-Leg, Broadwinged and Swanson's Hawks, illustration
Ancestral tree of Birds image from Henry Fairfield Osborn, "Origin and Evolution of Life"
Anemone
Anemone and Bellwort, close
Anemone canadensis
Anemone pennsylvanica
Anemone pennsylvanica and where it grows
Animal Biology Building
Ant nest of Atta texana, illustration
Ant nest of Atta texana, image of a photograph from a book