Audubon's Warbler, Hermit Warbler and Black-throated gray Warbler from Birds of America (1827) by John James Audubon (1785 -…
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Black-throated green Warbler, Blackburnian and Mourning Warbler from Birds of America (1827) by John James Audubon (1785 -…
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Golden-winged Warbler and Cape May Warbler from Birds of America (1827) by John James Audubon (1785 - 1851), etched by…
Little Tyrant Flycatcher, Small-headed Flycatcher, Blue Mountain Warbler, Bartram's Vireo, Short-legged Pewee and Rocky…
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Garden warbler (Sylvia borin) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of…