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------=_Part_30_32228338.1209057727542 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline All, Folks band Saw-whet Owls (NSWO) primarily in the fall on their southward journey, but a few hearty souls also band the northbound birds. As of earlier this week, the northbound migration was still strong at Whitefish Point (Michigan), with over 100 NSWO's banded in one night. If our birds are following a similar pattern, then earlier Nocturnal Owl Surveys, like the one my wife and I did (zero NSWO's), may not represent this year's breeding population well. HOWEVER, last year was a cruddy breeding season here, but was very good more centrally in the continent, implying that if there is strong fidelity to a nesting area, then maybe the low NSWO numbers on surveys is representative (Greg - correct me if I'm wrong here - I haven't been keeping track but my impression of people's NOS reports is that there are low NSWO numbers). If there isn't a strong attachment to the breeding grounds, then perhaps some of those huge numbers of last fall's south-bound migrants may swerve this way as they come north. It would be interesting to see the results of the NOS's plotted as number of NSWO against date - i.e. are later surveys picking up more birds? At this point, all my nest boxes for owls are empty, including the one recently morphed into a Kestrel box...ya gotta hate when they clearcut all the way around your nest box tree like that...it's a real jaw-dropper. I'll be going up to SW Cape Breton in the next few days to check six boxes there. Randy _________________________________ RF Lauff Way in the boonies of Antigonish County, NS. ------=_Part_30_32228338.1209057727542 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline <div>All,</div> <div> </div> <div>Folks band Saw-whet Owls (NSWO) primarily in the fall on their southward journey, but a few hearty souls also band the northbound birds. As of earlier this week, the northbound migration was still strong at Whitefish Point (Michigan), with over 100 NSWO's banded in one night.</div> <div> </div> <div>If our birds are following a similar pattern, then earlier Nocturnal Owl Surveys, like the one my wife and I did (zero NSWO's), may not represent this year's breeding population well. HOWEVER, last year was a cruddy breeding season here, but was very good more centrally in the continent, implying that if there is strong fidelity to a nesting area, then maybe the low NSWO numbers on surveys is representative (Greg - correct me if I'm wrong here - I haven't been keeping track but my impression of people's NOS reports is that there are low NSWO numbers). If there isn't a strong attachment to the breeding grounds, then perhaps some of those huge numbers of last fall's south-bound migrants may swerve this way as they come north.</div> <div> </div> <div>It would be interesting to see the results of the NOS's plotted as number of NSWO against date - i.e. are later surveys picking up more birds?</div> <div> </div> <div>At this point, all my nest boxes for owls are empty, including the one recently morphed into a Kestrel box...ya gotta hate when they clearcut all the way around your nest box tree like that...it's a real jaw-dropper. I'll be going up to SW Cape Breton in the next few days to check six boxes there.<br> <br>Randy<br>_________________________________<br>RF Lauff<br>Way in the boonies of<br>Antigonish County, NS. </div> ------=_Part_30_32228338.1209057727542--
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