[NatureNS] Olive-sided Flycatcher Fledglings

From: "John Kearney" <john.kearney@ns.sympatico.ca>
To: <naturens@chebucto.ns.ca>
Date: Thu, 15 Sep 2011 21:06:54 -0300
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This morning, Sept. 15, I saw what I would interpret to be an adult
Olive-sided Flycatcher feeding three fledglings on Brown's Mountain, Pictou
County. While I believe I saw repeated transfers of food between adult and
fledglings at a distance, on one occasion, I clearly saw one bird, catch a
large insect, return to its perch, next to one of the other three birds,
with the insect still visible in its bill, and then lean toward and transfer
the insect to one of the other birds. One of these four birds (I'm not sure
which) was vocalizing throughout all the time that the birds were under
observation (about 15 minutes).  An adult OSFL was observed singing on this
exact site on 12 June of this year (2011) and on 6 June of last year (2010).

 

Such a late date for the observance of this feeding of young birds and the
fact that an OSFL was apparently on territory in this same location in early
June would seem to indicate that these young birds represent a successful
second or third nesting attempt for this breeding season. From the
literature I could read today, there are no records for 2nd or 3rd clutches
east of Alaska and northwest Oregon.

 

If my interpretations are correct, this is all good news for this species
listed as "threatened" in the Species at Risk Act as it may indicate that
the OSFL may be more resilient or have a higher reproductive rate than
currently thought.


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-CA link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>This =
morning, Sept. 15, I saw what I would interpret to be an adult =
Olive-sided Flycatcher feeding three fledglings on Brown&#8217;s =
Mountain, Pictou County. While I believe I saw repeated transfers of =
food between adult and fledglings at a distance, on one occasion, I =
clearly saw one bird, catch a large insect, return to its perch, next to =
one of the other three birds, with the insect still visible in its bill, =
and then lean toward and transfer the insect to one of the other =
birds.<span style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-fareast-language:EN-CA'> <span lang=3DEN-US>One of these four =
birds (I&#8217;m not sure which) was vocalizing throughout all the time =
that the birds were under observation (about 15 minutes).&nbsp; An adult =
OSFL was observed singing on this exact site on 12 June of this year =
(2011) and on 6 June of last year (2010).<o:p></o:p></span></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-fareast-language:EN-CA'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-fareast-language:EN-CA'>Such a late date for the observance of =
this feeding of young birds and the fact that an OSFL was apparently on =
territory in this same location in early June would seem to indicate =
that these young birds represent a successful second or third nesting =
attempt for this breeding season. From the literature I could read =
today, there are no records for 2<sup>nd</sup> or 3<sup>rd</sup> =
clutches east of Alaska and northwest Oregon.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-fareast-language:EN-CA'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-fareast-language:EN-CA'>If my interpretations are correct, this =
is all good news for this species listed as &#8220;threatened&#8221; in =
the Species at Risk Act as it may indicate that the OSFL may be more =
resilient or have a higher reproductive rate than currently =
thought.<o:p></o:p></span></p></div></body></html>
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