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This is a multi-part message in MIME format. --Boundary_(ID_kQuLGdXMXJtTjkI47GjUlA) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Paul S. Boyer wrote: >Why do the birds which land on the boat often fall into the water? >He hopped around catching various gnats, at times coming close to us, showing no fear, and acting in good >health. .... I have never read such a thing, and cannot guess why a restful stopover should have hurt that warbler. The long and the short of it Paul is that these birds have probably reached a metabolic point of no return. Once a migrating bird's fat reserve is gone it begins to metabolize muscle protein. If they can't land to replenish their reserves or too much muscle is metabolized they may simply be beyond the point of recovery if they finally do land on dry land. Helene Van Doninck of the Cobequid Wildlife Rehabilitation Centre and the list's 'resident' veterinarian may have more insight on this. I don't think the stopover hurt the bird in your example, rather I think that it had reached the point where the food it managed to catch on the boat was not sufficient to keep it alive. As far as birds falling into the water once they have landed on the boat go, they land on the boat because they have to (running out of energy), they leave because flying away is a response to the danger they detect (people) , and they fall into the water because they no longer have the energy to sustain the flight. All the best, Lance =========================== Lance Laviolette Glen Robertson, Ontario lance.laviolette@lmco.com =========================== --Boundary_(ID_kQuLGdXMXJtTjkI47GjUlA) Content-type: text/html; charset=us-ascii Content-transfer-encoding: 7BIT <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.3314" name=GENERATOR></HEAD> <BODY style="WORD-WRAP: break-word; webkit-nbsp-mode: space; webkit-line-break: after-white-space"> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>Paul S. Boyer wrote:</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>></FONT></SPAN>Why do the birds which land on the boat often fall into the water?<SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2> </FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>></FONT></SPAN>He hopped around catching various<SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2> </FONT></SPAN>gnats, at times coming close to us, showing no fear, and acting in good <SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2> </FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>></FONT></SPAN>health. <FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN class=262120316-07052008> .... </SPAN><SPAN class=262120316-07052008> </SPAN></FONT></FONT></FONT>I have never read such a thing, and cannot guess why a restful stopover should have hurt that warbler.<SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2> </FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>The long and the short of it Paul is that these birds have probably reached a metabolic point of no return. Once a migrating bird's fat reserve is gone it begins to metabolize muscle protein. If they can't land to replenish their reserves or too much muscle is metabolized they may simply be beyond the point of recovery if they finally do land on dry land. Helene Van Doninck of the Cobequid Wildlife Rehabilitation Centre and the list's 'resident' veterinarian may have more insight on this.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>I don't think the stopover hurt the bird in your example, rather I think that it had reached the point where the food it managed to catch on the boat was not sufficient to keep it alive.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>As far as birds falling into the water once they have landed on the boat go, they land on the boat because they have to (running out of energy), they leave because flying away is a response to the danger they detect (people) , and they fall into the water because they no longer have the energy to sustain the flight.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>All the best,</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><FONT face=Arial color=#0000ff size=2>Lance</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=262120316-07052008><!-- Converted from text/rtf format --> <P><SPAN lang=en-us><FONT face="Courier New" size=2>===========================</FONT></SPAN> <BR><SPAN lang=en-us><FONT face="Courier New" size=2>Lance Laviolette</FONT></SPAN> <BR><SPAN lang=en-us><FONT face="Courier New" size=2>Glen Robertson, Ontario</FONT></SPAN> <BR>&