Jacob S. Spendelow / Least Auklet (Aethia pusilla), Alaska

Jacob S. Spendelow/ BIA / Least Auklet (Aethia pusilla), Alaska

Jacob S. Spendelow / Gray Catbird (Dumetella carolinensis), West Virginia

Jacob S. Spendelow / Blue-grey Gnatcatcher (Polioptila caerulea), West Virginia

Jacob S. Spendelow / Blue-grey Gnatcatcher (Polioptila caerulea), West Virginia

Jacob S. Spendelow / Blue-winged Warbler (Vermivora cyanoptera), West Virginia

Jacob S. Spendelow / Blue-winged Warbler (Vermivora cyanoptera), West Virginia

Jacob S. Spendelow / Northern Parula (Setophaga americana) male singing, West Virginia

Jacob S. Spendelow / Northern Parula (Setophaga americana) male singing, West Virginia

Jacob S. Spendelow / American Yellow Warbler (Setophaga aestiva) male singing, West Virginia

Jacob S. Spendelow / American Yellow Warbler (Setophaga aestiva) male singing, West Virginia

Jacob S. Spendelow / American Yellow Warbler (Setophaga aestiva) male, West Virginia

Jacob S. Spendelow / American Yellow Warbler (Setophaga aestiva) male, West Virginia

Jacob S. Spendelow / Chestnut-sided Warbler (Setophaga pensylvanica) male, West Virginia

Jacob S. Spendelow / Chestnut-sided Warbler (Setophaga pensylvanica) male, West Virginia

Jacob S. Spendelow / Magnolia Warbler (Setophaga magnolia), West Virginia

Jacob S. Spendelow / Black-throated Green Warbler (Setophaga virens) male, West Virginia

Jacob S. Spendelow / Black-throated Green Warbler (Setophaga virens) male, West Virginia

Jacob S. Spendelow / Yellow-throated Warbler (Setophaga dominica), West Virginia

Jacob S. Spendelow / Cerulean Warbler (Setophaga cerulea) male, West Virginia

Jacob S. Spendelow / Worm-eating Warbler (Helmitheros vermivorus), West Virginia

Jacob S. Spendelow / Worm-eating Warbler (Helmitheros vermivorus) singing, West Virginia

Jacob S. Spendelow / Louisiana Waterthrush (Parkesia motacilla), West Virginia

Jacob S. Spendelow / Louisiana Waterthrush (Parkesia motacilla) singing, West Virginia

Jacob S. Spendelow / Hooded Warbler (Setophaga citrina) male, West Virginia

Jacob S. Spendelow / Hooded Warbler (Setophaga citrina) male, West Virginia

Jacob S. Spendelow / Rufous-sided Towhee (Pipilo erythrophthalmus), West Virginia

Jacob S. Spendelow / Indigo Bunting (Passerina cyanea) male, West Virginia

Jacob S. Spendelow / Pacific Loon (Gavia pacifica) calling, Alaska

Jacob S. Spendelow / Alder Flycatcher (Empidonax alnorum), Alaska

Jacob S. Spendelow / Canada Jay (Perisoreus canadensis) juvenile, Alaska

Jacob S. Spendelow / Northwestern Crow (Corvus caurinus), Alaska

Jacob S. Spendelow / Grey-cheeked Thrush (Catharus minimus), Alaska

Jacob S. Spendelow / Swainson's Thrush (Catharus ustulatus), Alaska

Jacob S. Spendelow / Pacific Wren (Troglodytes pacificus), Alaska

Jacob S. Spendelow / American Cliff Swallow (Petrochelidon pyrrhonota), Alaska

Jacob S. Spendelow / Boreal Chickadee (Poecile hudsonicus), Alaska

Jacob S. Spendelow / American Pipit (Anthus rubescens), Alaska

Jacob S. Spendelow / Grey-crowned Rosy-Finch (Leucosticte tephrocotis), Saint Paul Island, Alaska

Jacob S. Spendelow / Orange-crowned Warbler (Oreothlypis celata), Alaska

Jacob S. Spendelow / Orange-crowned Warbler (Oreothlypis celata), Alaska

Jacob S. Spendelow / Yellow-rumped Warbler (Setophaga coronata) male, Alaska

Jacob S. Spendelow / Blackpoll Warbler (Setophaga striata) male, Alaska

Jacob S. Spendelow / Lapland Bunting (Calcarius lapponicus) male singing, Alaska

Jacob S. Spendelow / Snow Bunting (Plectrophenax nivalis) male, Alaska

Jacob S. Spendelow / Oregon Junco (Junco hyemalis oreganus) male, Alaska

Jacob S. Spendelow / Dark-eyed Junco (Junco hyemalis) male, Alaska

Jacob S. Spendelow / Dark-eyed Junco (Junco hyemalis) male singing, Alaska