Bonier Lab

Ontario’s cities are rapidly expanding, posing a serious threat to wildlife. To better understand why some birds thrive in cities while so many others do not, and to find ways to make Ontario’s cities more bird friendly, we need to know which species do and do not breed in our cities.

We are compiling a comprehensive list of the bird species that regularly breed in 15 of Ontario’s metro areas, as well as a list of birds that occur regionally but do not breed in cities. To do so, we are calling on you – expert birders, naturalists, and ornithologists – to complete surveys on the avifauna of any Ontario city that you know well!