Big Crow vs. Little Bird
Tuesday, November 18th, 2008Teya Tamsen from Vancouver writes:
I’m wondering what the public can do to reduce the now overwhelming crow population in Vancouver? All the tiny birds are swiftly disappearing; it’s very sad to witness.
Lindsay responds:
Crows are a very smart bunch. Naturalist author David Quammen has pointed out that they will be all we have left (along with other generalists like coyotes and pigeons) if we don’t change our consumption habits and destruction of ecosystems.
Think of it this way, crows can tolerate living with us (in our concrete jungle, eating our garbage, etc.) and not many species can. I suspect if there has been a noticeable increase in numbers it’s due to last year’s garbage strike. Like the rats, crows would have benefited from a surplus of food items as people’s trashcans were overflowing!
This brings me to the low number of songbirds living in our urban green spaces and backyards. The rat population explosion (maybe you’ve had more rat sightings or seen their droppings at your bird feeder) likely resulted in more predation attempts on bird eggs and nests. The other major culprit in Vancouver and other cities more often than not is domestic cats and not crows.
I’d suggest you contact the local naturalist club as they spend a lot of time bird watching and could offer more advice.
Another suggestion would be to contact your local wild bird store because they’re experts on this sort of topic as well.
Finally, since you are aware of birds, do sign up for David Suzuki’s Nature Challenge where we give you tips to live with as small a footprint as possible.
You can of course reduce the amount of garbage you put out and ensure that your garbage bin is sealed. This will deter not just crows but coyotes, skunks and raccoons. All of this urban wildlife does provide us with a host of services – it’s just sometimes behind the scenes. We’d really miss them if they were gone, that’s for sure.
If I haven’t armed you with enough reading already, a recent report shows that many common bird species are at risk of going extinct, including crows.