next message in archive
no next message in thread
previous message in archive
Index of Subjects
This is a multi-part message in MIME format. ------=_NextPart_000_006A_01CE14E2.B2244950 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ----- Original Message -----=20 From: Hans Toom=20 To: NS-RBA=20 Sent: Wednesday, February 27, 2013 12:04 PM Subject: Bald Eagle Attack on Lesser Scaup Ray Staszko was photographing a surfacing Lesser Scaup at Purcell's Cove = when "whamo" the bird disappeared in the talons of a Bald Eagle. = Although I have never studied the predatory behaviour of a Bald Eagle I = suspect that diving ducks are more susceptible to this king of demise = than dabbling ducks. The Bald Eagle can see the diver swimming under = water and time its attack to coincide with the helpless victims = surfacing location. The diver cannot see behind it when swimming under = water unlike a dabbler that spends most of its time on the surface = looking about and in the protection of a group, with alarm modes = available. Also a dabbler can take off vertically from the surface = whereas the diver needs a take off run. Ray has specialized on the sea birds at Purcell's Cove this winter and = has tallied the following birds, most photographed(some are my = sightings); Common Loon, Horned Grebe, Great Cormorant, Canada Goose, = Black Duck, Mallard, American Wigeon, Canvasback, Greater Scaup, Lesser = Scaup, Common Eider, Long-tailed Duck(Old Squaw), White-winged Scoter, = Common Goldeneye, Common Merganser, Red-breasted Merganser, Bald Eagle, = Purple Sandpiper, Ring-billed Gull, Herring Gull, Great Black-backed = Gull, Glaucous Gull, Iceland Gull, Dovekie and Black Guillemot. I've = probably missed some birds. If Ray permits I'll post the story and photos of the Bald Eagle attack = on the Lesser Scaup in my on line journal. Hans _________________________________________________________________________= ________________________________ Hans Toom Portuguese Cove, Nova Scotia, Canada http://www.hanstoom.com/ ------=_NextPart_000_006A_01CE14E2.B2244950 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type> <META name=3DGENERATOR content=3D"MSHTML 8.00.6001.19400"> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV> </DIV> <DIV style=3D"FONT: 10pt arial">----- Original Message -----=20 <DIV style=3D"BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A=20 title=3Dhtoom@hfx.eastlink.ca href=3D"mailto:htoom@hfx.eastlink.ca">Hans = Toom</A>=20 </DIV> <DIV><B>To:</B> <A title=3DNS-RBA@yahoogroups.com=20 href=3D"mailto:NS-RBA@yahoogroups.com">NS-RBA</A> </DIV> <DIV><B>Sent:</B> Wednesday, February 27, 2013 12:04 PM</DIV> <DIV><B>Subject:</B> Bald Eagle Attack on Lesser Scaup</DIV></DIV> <DIV><BR></DIV> <DIV><FONT size=3D2 face=3DArial>Ray Staszko was photographing a = surfacing=20 <STRONG>Lesser Scaup</STRONG> at Purcell's Cove when "whamo" the bird=20 disappeared in the talons of a <STRONG>Bald Eagle</STRONG>. Although I = have=20 never studied the predatory behaviour of a <STRONG>Bald Eagle</STRONG> I = suspect=20 that diving ducks are more susceptible to this king of demise than = dabbling=20 ducks. The <STRONG>Bald Eagle</STRONG> can see the diver swimming under = water=20 and time its attack to coincide with the helpless victims surfacing = location.=20 The diver cannot see behind it when swimming under water unlike a = dabbler that=20 spends most of its time on the surface looking about and in the = protection of a=20 group, with alarm modes available. Also a dabbler can take off = vertically=20 from the surface whereas the diver needs a take off run.</FONT></DIV> <DIV><FONT size=3D2 face=3DArial></FONT> </DIV> <DIV><FONT size=3D2 face=3DArial>Ray has specialized on the sea birds at = Purcell's=20 Cove this winter and has tallied the following birds, most = photographed(some are=20 my sightings); <STRONG>Common Loon, Horned Grebe, Great Cormorant, = Canada Goose,=20 Black Duck, Mallard, American Wigeon, Canvasback, Greater Scaup, Lesser = Scaup,=20 Common Eider, Long-tailed Duck(Old Squaw), White-winged Scoter, Common=20 Goldeneye, Common Merganser, Red-breasted Merganser, Bald Eagle, Purple=20 Sandpiper, Ring-billed Gull, Herring Gull, Great Black-backed Gull, = Glaucous=20 Gull, Iceland Gull, Dovekie and Black Guillemot</STRONG>. I've probably = missed=20 some birds.</FONT></DIV> <DIV><FONT size=3D2 face=3DArial></FONT> </DIV> <DIV><FONT size=3D2 face=3DArial>If Ray permits I'll post the story and = photos of=20 the <STRONG>Bald Eagle</STRONG> attack on the <STRONG>Lesser = Scaup</STRONG> in=20 my on line journal.</FONT></DIV> <DIV><FONT size=3D2=20 face=3DArial><BR>Hans<BR>________________________________________________= _________________________________________________________<BR>Hans=20 Toom<BR>Portuguese Cove, Nova Scotia, Canada<BR><A=20 href=3D"http://www.hanstoom.com/">http://www.hanstoom.com/</A><BR></FONT>= </DIV></BODY></HTML> ------=_NextPart_000_006A_01CE14E2.B2244950--
next message in archive
no next message in thread
previous message in archive
Index of Subjects