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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 <<a = href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</a>></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--
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Index of Subjects