Date: 2/24/26 9:27 am From: kathy kuyper via Tweeters <tweeters...> Subject: Re: [Tweeters] Predation by crows
I guess we shouldn't leave out Cooper's hawks. I think there was a
A study in Tucson showing an inverse relationship between the number of COHA and white-winged doves. Don't know whether the number of COHA here has had a similar effect on local birds.
There was or is a "Crumb Clean" campaign in Big Basin State Park (CA) and maybe other parks to keep the number of ravens and jays down because of their predation on marbled murrelets.
For the record though, I do agree lack of insects is very important. It still makes me sad to go out in the evening and see nothing circling around outdoor lighting and the two bats I often saw did not show up last year.
Kathy
Sent from my iPhone
On Feb 23, 2026, at 5:29 PM, Hans-Joachim Feddern <thefedderns...> wrote:
Thank you Kathy! Point well taken! All members of the crow family - including jays and magpies are well known nest robbers, taken eggs and young of other birds. I have even seen them take small Mallard ducklings. With the noticeable increase in the crow population, there certainly would be an impact on songbirds and other species.
On Mon, Feb 23, 2026 at 5:02 PM kathy kuyper via Tweeters <tweeters...><mailto:<tweeters...>> wrote:
Another possibility for lower small bird numbers is the large number of crows who spread out from the communal roosts to breed in neighborhoods throughout the county. I have seen crows eat or kill nestlings and other birds and carrying nestlings, to their offspring I guess.
