Black-capped Chickadee | fee-bee | Males whistle to attract mates and protect their territory | Throughout North America, from western Alaska to southern Yukon in the north to northern California and New Mexico in the south |
Broad-winged Hawk | kee-eee | To communicate with their mates and offspring | Throughout the Americas, from southern Canada to southern Brazil |
Carolina Wren | cheer, cheer, cheer, what, what, what, what | Mimicking the sound of the Northern Cardinal | Eastern North America, from the south of Ontario, Canada to northeast Mexico |
Cedar Waxwing | see or sree | To communicate with other birds about food, potential danger, and other similar messages | Throughout North and Central America |
Eastern Meadowlark | see-you or see-yeeeer | To defend their current territory | From eastern North America to northern South America |
Eurasian Blue Tit | tzii-tzii | To warn other animals about birds of prey like the Common Buzzard or the Eurasian Sparrowhawk | Throughout Eurasia, including Britain, Caucasus, Corsica, Russia, Spain, Sicily, Iran, Iraq, Turkey, etc |
Mistle Thrush | chewee-trewuu … trureetruuruu | Males whistle to attract a mate and keep their pair bonds as well as maintain their territory | Throughout Eurasia, though rarer in the north |
Northern Cardinal | cheer, cheer, cheer, what, what, what, what | To attract mates and defend their nests from predators | Eastern North America, from Canada to the southern United States and Mexico |
Tufted Titmouse | peter-peter-peter | Males whistle to attract mates and protect their territory | Eastern United States and Canada |
White-throated Sparrow | Oh-sweet-canada-canada or Old-Sam-Peabody-Peabody | Males sing to attract potential mates during the breeding season | Eastern United States and Canada |
Willow Warbler | chiff chaff, chiff chaff, chiff chaff | Part of their singing technique | Throughout the Palearctic, including sub-Saharan Africa and northern and temperate Europe |
Yellow-breasted Chat | chak-chak | Part of their singing technique | From southern Canada to Mexico, encompassing most of Central America |