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color=3D#0000ff size=3D2>Lance</FONT></SPAN& Hi Lance and All This past fall I encountered a loose flock of grey jays. As it was in thick woods, it was hard to estimate the number but 50 was probably in the ball park. They were probably migrating as they were not there any more in the next few days. Have a nice winter Paul --- "Laviolette, Lance (EXP)" <lance.laviolette@lmco.com> wrote: > Hi Brian and others, > > A few notes on fall and winter concentrations of > Blue Jays and corvids. > When I was living at Greenwich in the Valley and > feeding birds, I would > 'see' concentrations of one to two dozen Blue Jays. > However, through a > small banding study I did, I know that there were > many more Blue Jays > coming to the feeders over the course of the winter > than I would have > thought without the banding. It also showed that in > spite of the > abundant food source I had set out, at least some of > the Blue Jays I was > feeding were also ranging kilometres away to the > Wolfville area to visit > other feeders during that winter. > > Regarding Blue Jay migration at Brier Island, autumn > flocks can be in > the order of many hundreds or more at times. This is > nothing compared to > the numbers that occur at the winter roosts of > American Crows. The > 'traditional' roost, whose numbers are included in > the Wolfville > Christmas count, can be in excess of 20,000. > > All the best, > > Lance > > > From: naturens-owner@chebucto.ns.ca > [mailto:naturens-owner@chebucto.ns.ca] On Behalf Of > Brian Bartlett > Sent: January 6, 2007 6:43 PM > To: naturens@chebucto.ns.ca > Subject: [NatureNS] size > ________________________________ > > of corvid flocks > > > Here in West End Halifax I find it's common to see > Blue Jays > alone or in pairs, and even more often to hear them, > but less common to > see them in larger groups -- such as half a dozen > close together I saw a > few days ago, without binoculars so I couldn't tell > if there was a mix > of adults and juveniles. While I've had so little > luck with backyard > feeders that I've given up on them (having two > outdoor cats is no help), > I wonder if those with feeders are accustomed to > seeing larger groups of > Blue Jays. I've read that all members of the Corvid > family gather at > least in small groups, but I'm wondering how large > groups of Blue Jays > get. Surely nothing like mobs of Crows -- but how > much larger than 1/2 > dozen? > Thanks for any observations. > Brian > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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