Re: Bird trap on Aliso and Wood Canyon Trail
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I had a friend named Dharm Pellegrini who operated such traps, and he explained that BH Cowbirds have artificially increased in numbers during the last century or more, as humans populated the west, and introduced ranching (hence the name "cowbird") and farming to areas that were previously forested. This human caused increase in cowbird populations is one of the reasons that Brown headed Cowbirds were able to parasitize Yellow billed Cuckoo, Yellow Warbler, and Bell's Vireo nests, crashing their numbers.
300 West 3rd Ave
Anchorage, Alaska 99501
On Tue, May 7, 2019, 3:26 PM Alex Tolkachev <atolkachev@...> wrote:
There is a large bird trap operated, I assume, by OC Parks not far from the creek crossing where the dirt trail and paved trail originating at Awma Road and running on opposite sides of the creek meet. Today, it was inhabited by about six Brewer's Blackbirds (unless I am mistaken; I did take photos just in case). There is food and water inside. I started reading the sign, but the birds were getting agitated by my proximity, so I only gave it a very cursory reading before stepping back. I gathered from the sign that the purpose of the trap is to help endangered species breed more successfully, that the trap is checked daily, and that the public is asked in the strongest terms not to mess with it.