These uncolored octavos are test sheets from the time after the first edition as work started on the second edition. These represent an interesting piece of history. Most are uncolored but some have some background coloring.  There is some staining on some which 
is visible in the pictures.

Audubon Uncolored Bird Octavos

Brown Pelican, Tan Background, Plate 423, Uncolored Octavo
$350.00
$350.00
Carolina Turtle Dove Plate 286, Uncolored Octavo
$250.00
$250.00
Brown Pelican, Blue Background, Plate 423, Uncolored Octavo
$350.00
$350.00
Key West Dove Plate 282, Uncolored Octavo
$250.00
$250.00
American White Pelican, Plate 422, Uncolored Octavo
$350.00
$350.00
Harlequin Duck Plate 409, Uncolored Octavo
$200.00
$200.00

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Fork Tailed Flycatcher Plate 52, Uncolored Octavo
$200.00
$200.00
Snow Goose Plate 381, Uncolored Octavo
$200.00
$200.00

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Brewer's Duck, Plate 387 Uncolored Octavo
$125.00
$125.00

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Chestnut Backed Titmouse, Plate 129 Uncolored Octavo
$75.00
$75.00

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Lark Bunting, Plate 158 Uncolored Octavo
$150.00
$150.00
Red Shafted Woodpecker, Plate 274 Uncolored Octavo
$75.00
$75.00

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Baltimore Oriole, Plate 217 Uncolored Octavo
$100.00
$100.00

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Bay Breasted Wood Warbler, Plate 80 Uncolored Octavo
$75.00
$75.00

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American Swift, Plate 44 Uncolored Octavo
$100.00
$100.00
Belted Kingfisher, Plate 255 Uncolored Octavo
$200.00
$200.00

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Blue Long Grosbeak, Plate 204 Uncolored Octavo
$85.00
$85.00

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Rose Breasted Song Grosbeak, Plate 205, Green Background, Uncolored Octavo
$100.00
$100.00

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California Nuthatch, Plate 250 Uncolored Octavo
$85.00
$85.00

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Clay Colored Bunting, Plate 161 Uncolored Octavo
$75.00
$75.00
Connecticut Warbler, Plate 99 Uncolored Octavo
$100.00
$100.00
Buff Breasted Merganser, Plate 411 Uncolored Octavo
$200.00
$200.00
Hawk Owl, Plate 27 Uncolored Octavo
$125.00
$125.00
Hudson's Bay Titmouse, Plate 128 Uncolored Octavo
$75.00
$75.00

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Ivory Billed Woodpecker, Plate 256 Uncolored Octavo
$250.00
$250.00

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Kentucky Flycatching Warbler, Plate 74 Uncolored Octavo
$125.00
$125.00
Lazule Finch, Plate 171, Uncolored Octavo
$75.00
$75.00
Marsh Wren, Plate 123 Uncolored Octavo
$100.00
$100.00

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Nashville Swamp Warbler, Plate 113 Uncolored Octavo
$100.00
$100.00

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Pewee Flycatcher, Plate 63 Uncolored Octavo
$100.00
$100.00

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Phillips Woodpecker, Plate 258 Uncolored Octavo
$150.00
$150.00
Pigeon Hawk, Plate 21 Uncolored Octavo
$150.00
$150.00
Prairie Lark Finch, Plate 202, Green Background, Uncolored Octavo
$75.00
$75.00
Rock Wren, Plate 116 Uncolored Octavo
$75.00
$75.00

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Great Horned Owl Plate 39, Uncolored Octavo
$300.00
$300.00
Ruff Necked Hummingbird, Plate 254 Uncolored Octavo
$175.00
$175.00
Saffron Headed Marsh Blackbird, Plate 213 Uncolored Octavo
$75.00
$75.00
Wandering Rice Bird, Plate 211 Uncolored Octavo
$85.00
$85.00
Western Blue Bird, Plate 135, Tan Background, Uncolored Octavo
$85.00
$85.00
White Crowned Finch, Plate 192 Uncolored Octavo
$75.00
$75.00

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Wilson's Flycatching Warbler, Plate 75 Uncolored Octavo
$75.00
$75.00

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Yellow Billed Magpie, Plate 228 Uncolored Octavo
$125.00
$125.00
Key West Dove Plate 282, Uncolored Octavo
$250.00
$250.00
Florida Jay, Plate 235 Uncolored Octavo
$125.00
$125.00
Red Shouldered Buzzard, Plate 9 Uncolored Octavo
$200.00
$200.00

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Connecticut Warbler, Plate 99 Uncolored Octavo
$100.00
$100.00
Connecticut Warbler, Plate 99 Uncolored Octavo
$100.00
$100.00
Brown Pelican, Green Background, Plate 423, Uncolored Octavo
$350.00
$350.00
Brown Pelican (Young), Tan Background, Plate 424, Uncolored Octavo
$300.00
$300.00
Roseate Tern, Plate 437, Uncolored Octavo
$65.00
$65.00
Connecticut Warbler, Plate 99 Uncolored Octavo
$100.00
$100.00
Connecticut Warbler, Plate 99 Uncolored Octavo
$100.00
$100.00

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Nashville Swamp Warbler, Plate 113 Uncolored Octavo
$100.00
$100.00
Nashville Swamp Warbler, Plate 113 Uncolored Octavo
$100.00
$100.00
Rock Wren, Plate 116 Uncolored Octavo
$75.00
$75.00

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Western Blue Bird, Plate 135, Green Background, Uncolored Octavo
$70.00
$70.00

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Lazule Finch, Plate 171, Uncolored Octavo
$75.00
$75.00

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Black Headed Goldfinch, Plate 182 Uncolored Octavo
$75.00
$75.00
Black Headed Goldfinch, Plate 182 Uncolored Octavo
$75.00
$75.00
Brown Finch, Plate 187, Uncolored Octavo
$75.00
$75.00

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Brown Finch, Plate 187, Uncolored Octavo
$75.00
$75.00
Rose Breasted Song Grosbeak, Plate 205, Tan Background, Uncolored Octavo
$100.00
$100.00

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Phillips Woodpecker, Plate 258 Uncolored Octavo
$75.00
$75.00

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Maria's Woodpecker, Plate 260, Uncolored Octavo
$75.00
$75.00
Audubon's Woodpecker, Plate 265, Uncolored Octavo
$75.00
$75.00
Arctic Three Toed Woodpecker, Plate 268, Uncolored Octavo
$75.00
$75.00

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Banded Three Toed Woodpecker, Plate 269, Uncolored Octavo
$75.00
$75.00
Dusky Grouse, Plate 295, Uncolored Octavo
$100.00
$100.00
Dusky Grouse, Plate 295, Uncolored Octavo
$100.00
$100.00
Red Breasted Sandpiper, Plate 328, Uncolored Octavo
$100.00
$100.00
Long Legged Sandpiper, Plate 334, Uncolored Octavo
$100.00
$100.00
Long Legged Sandpiper, Plate 334, Uncolored Octavo
$100.00
$100.00