[NatureNS] coopers hawk

References: <630852.25496.qm@web37902.mail.mud.yahoo.com>
From: c.majka@ns.sympatico.ca
Date: Wed, 31 Oct 2007 10:48:27 -0300
To: naturens@chebucto.ns.ca
Precedence: bulk
Return-Path: <naturens-mml-owner@chebucto.ns.ca>
Original-Recipient: rfc822;"| (cd /csuite/info/Environment/FNSN/MList; /csuite/lib/arch2html)"

next message in archive
next message in thread
previous message in archive
previous message in thread
Index of Subjects

Index of Subjects

--Apple-Mail-39-782942774
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset=US-ASCII;
	delsp=yes;
	format=flowed

Hi Gayle,

On 31-Oct-07, at 10:18 AM, Gayle MacLean wrote:

> Is the Coopers Hawk not as plentiful as the Sharp Shinned Hawk or  
> is it just that much more rural in its habitat preferences?

The 1992 Atlas of Breeding Birds of the Maritimes estimated a  
population of 3,400 +/- 500 pairs of Sharp-shinned Hawks in the  
Maritimes (1,600 +/- 300 in Nova Scotia), whereas the population  
estimate for Cooper's Hawk was less than 20 pairs in the Maritimes  
(and 0 pairs in Nova Scotia). There was only probable/possible  
breeding evidence of five pairs in New Brunswick. From this you can  
see that Cooper's Hawks are much rarer than Sharp-shinned Hawks.

In the 1950's and 1960's this species was greatly reduced in North  
America as a result of the use of DDT and other chlorinated  
hydrocarbons and its numbers have (certainly in this region) never  
recovered, although it was probably always at the very edge of its  
range here in the Maritime Provinces.

All the best,

Chris

_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.
Christopher Majka - Nova Scotia Museum of Natural History
1747 Summer Street, Halifax, Nova Scotia, Canada  B3H 3A6
(902) 424-6435   Email <c.majka@ns.sympatico.ca>
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.


--Apple-Mail-39-782942774
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=ISO-8859-1

<html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space; ">
Hi Gayle,<div><br><div><div>On 31-Oct-07, at 10:18 AM, Gayle MacLean =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><span class=3D"Apple-style-span" style=3D"border-collapse: =
separate; color: rgb(0, 0, 0); font-family: 'Times New Roman'; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; orphans: 2; =
text-align: auto; text-indent: 0px; text-transform: none; white-space: =
normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: =
0px; -webkit-border-vertical-spacing: 0px; =
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0; "><div>Is the Coopers Hawk not as =
plentiful as the Sharp Shinned Hawk or is it just that much more rural =
in its habitat preferences?</div><div><span class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 221); -webkit-text-stroke-width: -1; =
"></span></div></span></blockquote><div><br =
class=3D"webkit-block-placeholder"></div><div>The 1992 Atlas of Breeding =
Birds of the Maritimes=A0estimated=A0a population of 3,400 +/- 500 pairs =
of Sharp-shinned Hawks in the Maritimes (1,600 +/- 300 in Nova Scotia), =
whereas the population estimate for Cooper's Hawk was less than 20 pairs =
in the Maritimes (and 0 pairs in Nova Scotia). There was only =
probable/possible breeding evidence of five pairs in New Brunswick.=A0=46r=
om this you can see that Cooper's Hawks are much rarer than =
Sharp-shinned Hawks.=A0</div><div><br =
class=3D"webkit-block-placeholder"></div><div>In the 1950's and 1960's =
this species was greatly reduced in North America as a result of the use =
of DDT and other chlorinated hydrocarbons and its numbers have =
(certainly in this region) never recovered, although it was probably =
always at the very edge of its range here in the Maritime =
Provinces.</div><div><br class=3D"webkit-block-placeholder"></div><div>All=
 the best,</div><div><br =
class=3D"webkit-block-placeholder"></div><div>Chris</div><br><span =
class=3D"Apple-style-span" style=3D"border-collapse: separate; color: =
rgb(0, 0, 0); font-family: 'Times New Roman'; font-size: 12px; =
font-style: normal; font-variant: normal; font-weight: normal; =
letter-spacing: normal; line-height: normal; orphans: 2; text-align: =
auto; text-indent: 0px; text-transform: none; white-space: normal; =
widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; =
-webkit-border-vertical-spacing: 0px; =
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0; "><div><span =
class=3D"Apple-style-span" style=3D"-webkit-text-stroke-width: -1px; =
"><font class=3D"Apple-style-span" =
color=3D"#000000">_._._._._._._._._._._._._._._._._._._._._._._._._._._._.=
_._._._._._._._._.</font></span></div></span></div><div> <p =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><font face=3D"Times" size=3D"3" =
style=3D"font: 12.0px Times">Christopher Majka - Nova Scotia Museum of =
Natural History</font></p> <p style=3D"margin: 0.0px 0.0px 0.0px =
0.0px"><font face=3D"Times" size=3D"3" style=3D"font: 12.0px Times">1747 =
Summer Street, Halifax, Nova Scotia, Canada<span =
class=3D"Apple-converted-space">=A0 </span>B3H 3A6</font></p> <p =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><font face=3D"Times" size=3D"3" =
style=3D"font: 12.0px Times">(902) 424-6435 <span =
class=3D"Apple-converted-space">=A0 </span>Email &lt;<a =
href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</a>&gt;</f=
ont></p> <p style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><font face=3D"Times"=
 size=3D"3" style=3D"font: 12.0px =
Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._=
._._._.</font></p>  </div><br></div></body></html>=

--Apple-Mail-39-782942774--

next message in archive
next message in thread
previous message in archive
previous message in thread
Index of Subjects