I suppose it began with renditions of “Merry Schismus” and “O! Schismus Tree” during lab meetings earlier this month, but trudging through an empty Liberty State Park today on our annual Lower Hudson Christmas Bird Count, I began to sing the following in my head.
Sung to the tune of “The 12 Days of Christmas” (or not, if you’re ill-favored like me) because there weren’t enough birds in it already.
On the first day of CBC, Audubon sent my way: a Saw-whet in a pine tree.

On the second day of CBC, Audubon sent my way: two Coopers Hawks and a Saw-whet in a pine tree.
On the third day of CBC, Audubon sent my way: three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the fourth day of CBC, Audubon sent my way: four Mockingbirds, three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the fifth day of CBC, Audubon sent my way: five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the sixth day of CBC, Audubon sent my way: six Hooded ‘Gansers, five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the seventh day of CBC, Audubon sent my way: seven Orange-crowned Warblers, six Hooded ‘Gansers, five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers’ Hawks and a Saw-whet in a pine tree.
On the eighth day of CBC, Audubon sent my way: eight Northern Pintails, seven Orange-crowned Warblers, six Hooded ‘Gansers, five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the ninth day of CBC, Audubon sent my way: nine Cedar Waxwings, eight Northern Pintails, seven Orange-crowned Warblers, six Hooded ‘Gansers, five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the tenth day of CBC, Audubon sent my way: ten Ring-necked Pheasants, nine Cedar Waxwings, eight Northern Pintails, seven Orange-crowned Warblers, six Hooded ‘Gansers, five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the eleventh day of CBC, Audubon sent my way: eleven Piping Plovers, ten Ring-necked Pheasants, nine Cedar Waxwings, eight Northern Pintails, seven Orange-crowned Warblers, six Hooded ‘Gansers, five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers’ Hawks and a Saw-whet in a pine tree.
On the twelfth day of CBC, Audubon sent my way: twelve Pileateds, eleven Piping Plovers, ten Ring-necked Pheasants, nine Cedar Waxwings, eight Northern Pintails, seven Orange-crowned Warblers, six Hooded ‘Gansers, five Goldeneyes, four Mockingbirds, three Moorhens, two Coopers Hawks and a Saw-whet in a pine tree.
On the 13th day of CBC, Audubon sent to me frostbite, warbler neck, blisters, and a runny nose so the song ends here.
Please do add your own verses and variations in the comments!
Image sources: Pileated Woodpeckers, Piping Plovers, Ring-necked Pheasants, Cedar Waxwings, Northern Pintails, Orange-crowned Warblers, Hooded Mergansers, Goldeneyes, Northern Mockingbird, Common Moorhens, Coopers Hawks, and a Saw-whet in a pine tree.