[NatureNS] Bird behavior question

Date: Mon, 10 Mar 2008 10:38:14 -0400
From: "Laviolette, Lance (EXP)" <lance.laviolette@lmco.com>
To: naturens@chebucto.ns.ca
Thread-Topic: [NatureNS] Bird behavior question
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A little correction: The 'head down' display is a know threat display of
the Semipalmated Plover (not Sandpiper), and other plovers for that
matter. I don't know if Semipalmated Sandpipers have been observed doing
this. The threat behaviour I'm most familiar with for them is that of
short chases.
 
All the best,
 
Lance


________________________________

	From: naturens-owner@chebucto.ns.ca
[mailto:naturens-owner@chebucto.ns.ca] On Behalf Of Laviolette, Lance
(EXP)
	Sent: Monday, March 10, 2008 9:52 AM
	To: naturens@chebucto.ns.ca
	Subject: RE: [NatureNS] Bird behavior question
	
	
	Hi Fritz,
	 
	While I haven't come across another description of Blue Jays
performing this 'head down' behaviour, it is a known threat display of
Semipalmated Sandpipers. Since this is the time of year when Blue Jays
start to perform their social displays, you've probably witnessed a
dominance display taking place along these lines. I've had up to 35 Blue
Jays in my apple tree for the last two weeks, bopping their heads and
calling, perhaps males trying to convince females to ignore the
mountains of snow in this area and begin mating and nest building. I
don't think the females are falling for it...
	 
	All the best,
	 
	Lance
	=========================== 
	Lance Laviolette 
	Glen Robertson, Ontario 

	lance.laviolette@lmco.com 
	=========================== 


________________________________

		From: naturens-owner@chebucto.ns.ca
[mailto:naturens-owner@chebucto.ns.ca] On Behalf Of Fritz McEvoy
		Sent: Monday, March 10, 2008 9:24 AM
		To: NATURE, NS
		Subject: [NatureNS] Bird behavior question
		
		
		Hi All,
		   While watching two Blue Jays squabble yesterday I
noted a behaviour that I hadn't observed before. Both birds stopped
fighting and placed their heads, opposite each other, flat on the
surface of my deck where the dispute was taking place. They repeated
this action a few times holding the position for a few seconds each
time. One bird then flew off and the remaining bird did the action one
more time before leaving.
		   Has anyone ever seen this behaviour? What was the
meaning of this odd behaviour?  All the best. 
		                       Fritz McEvoy
		                         Sunrise Valley CB
		
		
________________________________

		Snap and Share.  From your phone to your space.  Post
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<DIV dir=ltr align=left><SPAN class=087252814-10032008><FONT face=Arial 
color=#0000ff>A little correction: The 'head down' display is a know threat 
display of the Semipalmated Plover (not Sandpiper), and other plovers for that 
matter. I don't know if Semipalmated Sandpipers have been observed doing this. 
The threat behaviour I'm most familiar with for them is that of short 
chases.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=087252814-10032008><FONT face=Arial 
color=#0000ff></FONT></SPAN>&nbsp;</DIV>
<DIV dir=ltr align=left><SPAN class=087252814-10032008><FONT face=Arial 
color=#0000ff>All the best,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=087252814-10032008><FONT face=Arial 
color=#0000ff></FONT></SPAN>&nbsp;</DIV>
<DIV dir=ltr align=left><SPAN class=087252814-10032008><FONT face=Arial 
color=#0000ff>Lance</FONT></SPAN></DIV><BR>
<BLOCKQUOTE dir=ltr 
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
  <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
  <HR tabIndex=-1>
  <FONT face=Tahoma><B>From:</B> naturens-owner@chebucto.ns.ca 
  [mailto:naturens-owner@chebucto.ns.ca] <B>On Behalf Of </B>Laviolette, Lance 
  (EXP)<BR><B>Sent:</B> Monday, March 10, 2008 9:52 AM<BR><B>To:</B> 
  naturens@chebucto.ns.ca<BR><B>Subject:</B> RE: [NatureNS] Bird behavior 
  question<BR></FONT><BR></DIV>
  <DIV></DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff>Hi Fritz,</FONT></SPAN></DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff></FONT></SPAN>&nbsp;</DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff>While I haven't come across another description of Blue Jays 
  performing this 'head down' behaviour, it is&nbsp;a known threat display of 
  Semipalmated Sandpipers. Since this is the time of year when Blue Jays start 
  to perform their social displays, you've probably witnessed&nbsp;a dominance 
  display taking place along these lines. I've had up to 35 Blue Jays in my 
  apple tree for the last two weeks, bopping their heads and calling, perhaps 
  males trying to convince females to ignore the mountains of snow in this area 
  and begin mating and nest building. I don't think the females are falling for 
  it...</FONT></SPAN></DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff></FONT></SPAN>&nbsp;</DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff>All the best,</FONT></SPAN></DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff></FONT></SPAN>&nbsp;</DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff>Lance</FONT></SPAN></DIV>
  <DIV dir=ltr align=left><SPAN class=517364213-10032008><FONT face=Arial 
  color=#0000ff><!-- Converted from text/rtf format -->
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