My interpretation of that data is that being cuckoos are prone to understory and dense vegetation flight, they are also more prone to window collisions. I think this would account for both data sets, and the peregrines find them after the window strikes?? Has anyone ever seen a falcon chasing a cuckoo? I have not, nor have I ever seen them chasing anything smaller than a gull or pigeon....oops and lots of shorebirds.
Randy Frederickson > On Jun 10, 2016, at 6:59 PM, linda whyte <[email protected]> wrote: > > Interesting --just this week, I learned that 3 cuckoos, 1 yellow-billed, 2 > black-billed-- or the other way around, I don't recall--were brought in for > treatment of serious, identical, neck wounds that were probably caused by > peregrines. They were found in downtown St. Paul, close to a peregrine nest > area. > Linda Whyte >> On Jun 10, 2016 3:29 PM, "JULIAN SELLERS" <[email protected]> wrote: >> >> Perhaps 20 to 30 years ago, one of the leaders of the Twin Cities raptor >> community (Bud Tordoff, I believe) presented a program about Peregrine >> Falcons to a downtown St. Paul firm where my wife was employed. He stated >> that the most common prey species identified at the nest box on the Bremer >> Building was Yellow-billed Cuckoo. (Who would have guessed?) Maybe the >> cuckoos you've found were also "peregrine leavings." >> Julian >> >>> Date: Fri, 10 Jun 2016 09:35:10 -0600 >>> From: [email protected] >>> Subject: [mou-net] yellow-billed cuckoo window kill >>> To: [email protected] >>> >>> (Posted by Todd Starich <[email protected]> via moumn.org) >>> >>> Two summers ago I found a dead black-billed cuckoo, apparent victim of >> hitting a >>> window, on the north side of Moos Tower on the UMN East Bank. One day >> last >>> summer I found another dead black-billed cuckoo, maybe within 15 ft of >> where I >>> had found one the summer before. Today I came across a dead yellow-billed >>> cuckoo about 30 yards away, by the adjacent PWB. This is not a prominent >>> window-kill graveyard-- I bike through there every workday of the year, >> and it is >>> rare to see dead birds other than peregrine leavings. So the proportion >> of cuckoo >>> window kill compared to other birds seems exceptionally high. Something >> that >>> cuckoos see that other birds in general don't?? >>> ---- >>> Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net >>> Archives: http://lists.umn.edu/archives/mou-net.html >> >> ---- >> Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net >> Archives: http://lists.umn.edu/archives/mou-net.html >> > > ---- > Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net > Archives: http://lists.umn.edu/archives/mou-net.html ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html
