No one I think has mentioned that hawks--a merlin that I know of, at least--sometimes seem to use windows as a way of getting bird prey, driving them in for a collision. I had heard of this from a friend, than last fall experienced what sounded like an explosion just after I had shut off propane outside our summer home. Noticing a merlin on the railing and thinking it a coincidence at first, I checked everything I could think of to check for some kind of gas explosion, at length finding a ruffed grouse, still alive but in shock, on the ground underneath our outdoor propane fridge. On the window alongside the fridge some ruffed grouse feathers were clinging; the grouse was still alive but in heavy shock. I suppose if this were the case here the cuckoos would be carried off as prey and never seen...
*Tanya Beyer* http://www.epiphaniesafield.com/home-page.html On Mon, Jun 13, 2016 at 1:17 PM, Randy Frederickson < [email protected]> wrote: > 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 > ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html
