The Wild Bird Fund (WBF) is a state and federally licensed 501(c)(3) nonprofit that rehabilitates sick, injured and orphaned wildlife and releases them back to the wilds of New York City. Each year, WBF rehabilitates more than 7,500 animals. WBF treats more than 150 species, from common house sparrows, pigeons and Eastern gray squirrels to rarities such as Virginia rails and snowy owls. This work is funded by donations and accomplished by an animal care staff of about 30 wildlife rehabilitators, who are aided by many dozens of volunteers.