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Quail nest
Quail nest
Quail nest
Agoseris glauca, false dandelion, detail of head
Agoseris glauca, false dandelion, detail of single head
Agoseris glauca, false dandelion, view of clump
Anemone canadensis, view of clump
Arctic Woodpecker, tongue, illustration from a printed publication
Artemisia, view of distribution
A single plant of Astragalus caryocarpus, ground plum, in the grass (Atragalus crassicarpus)
Cliff Swallow colony at Dell Rapids, South Dakota
Cliff Swallow colony at Dell Rapids, South Dakota, end of ledge
Cliff Swallow colony at Dell Rapids, South Dakota, general view
Cliff Swallow colony at Dell Rapids, South Dakota, general view of the end of ledge
Cliff Swallow colony at Dell Rapids, South Dakota, medium close up
Cliff Swallow colony, general view at Dell Rapids, South Dakota
Cliff Swallows
Lilium philadelphicum var. andinum, detail of flower
Lilium philadelphicum var. andinum, detail of flower and bud
Lilium philadelphicum var. andinum, single plant
Mammilaria vivipara (Escobaria vivipara), close up of two segments
Mammilaria vivipara (Escobaria vivipara), flower and buds
Mammilaria vivipara (Escobaria vivipara), small clump with flower
Mammillaria vivipara (Escobaria vivipara), clump in flower
Mammillaria vivipara (Escobaria vivipara), mass in rocks
Opuntia clump in flower, Blue Mound
Opuntia fragilis and Mammillaria vivipara (Escobaria vivipara), masses of each together
Opuntia fragilis, general view of its rocky location below ledges at Pipestone
Opuntia fragilis, single clump
Opuntia fragilis, single clump
Opuntia fragilis, single clump
Opuntia fragilis, single clump in rocks
Opuntia, general view of location, Blue Mound
Opuntia, small clump with flower, Blue Mound
Opuntia, straggling clump and flower, Blue Mound
Oxytropis lambertii, locoweed, clump in grass
Oxytropis lambertii, locoweed, detail of flower, back
Oxytropis lambertii, locoweed, detail of flower, front
Oxytropis lambertii, locoweed, detail of flower, side
Oxytropis lambertii, locoweed, view of clump
Pipestone ledges at Gitchie Manitou
Psoralea argophylla (Pediomelum argophyllum), detail of flower cluster
Psoralea argophylla (Pediomelum argophyllum), single clump
Psoralea argophylla (Pediomelum argophyllum), single clump
Psoralea esculenta (Pediomelum esculentum), clump in grass
William Kilgore at movie machine taking Cliff Swallow colony
Alder
American Bittern, one young
American Bittern, one young
American Bitterns, four young
American Bitterns, four young
American Bitterns in grass, four young
American Goldeneye
Background, Bank Swallow
Background, Bank Swallow's nest
Background, Bank Swallows nest
Background, Black Tern area
Background, Black Tern area
Background, Black Tern area
Background, Black Tern area
Background, Blue-winged Teal
Background, Blue-winged Teal area
Background, Blue-winged Teal area
Background, Blue-winged Teal area
Background, boulder beach
Background, boulder shore
Background, dead reeds
Background, gravel beach
Background, interior of barn
Background, landscape
Background, landscape
Background, landscape
Background, landscape
Background, landscape
Background, landscape
Background, landscape
Background, Long Meadow marsh
Background, Maryland Yellowthroat
Background, muskrat house and reeds
Background, muskrat house in reeds
Background, Muskrat houses
Background, Night Hawk
Background, orchard in bloom
Background, orchard in bloom
Background, orchard in bloom
Background, orchard in bloom
Background, Prothonotary Warbler
Background, quill reeds, Black Tern area
Background, reed covered point
Background, reeds and ice
Background, reeds and ice
Background, sandbar and reeds
Background, sandbar and reeds
Background, sandbar and reeds
Background, sandbar and reeds
Background showing snow
Background showing snow
Background showing snow
Background showing snow
Background showing snow