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Birding
Bird Identification Q&A
Carcass of white heron, Finland
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<blockquote data-quote="KnockerNorton" data-source="post: 1242392" data-attributes="member: 66452"><p>A problem here is that I'm not sure how the wing and bill were measured in the link (302mm and 92mm). A bit of googling has found a Cattle Egret wing length of about 240cm, give or take 10, but this is from the carpal joint to the wing tip. If the measurement on the OP was the length of the whole outstretched wing, then that could easily be ok for Cattle Egret. Similarly for the bill - this is measured from bill tip to skull on the top of the upper mandible. For Cattle Egret this is about 50-60mm, but if the finders have measured it as the extent of yellow on the carcass, then they've clearly over-measured it, and it'd be about right for Cattle Egret.</p><p></p><p>Unless anyone can find out how it was measured, I'm not sure we'll get to the bottom of it. But I think the lack of quill sheath on pics (which means it's not a nestling) and the plausible explanation of incorrect measurement technique above, means Cattle Egret is still very much in the running.</p></blockquote><p></p>
[QUOTE="KnockerNorton, post: 1242392, member: 66452"] A problem here is that I'm not sure how the wing and bill were measured in the link (302mm and 92mm). A bit of googling has found a Cattle Egret wing length of about 240cm, give or take 10, but this is from the carpal joint to the wing tip. If the measurement on the OP was the length of the whole outstretched wing, then that could easily be ok for Cattle Egret. Similarly for the bill - this is measured from bill tip to skull on the top of the upper mandible. For Cattle Egret this is about 50-60mm, but if the finders have measured it as the extent of yellow on the carcass, then they've clearly over-measured it, and it'd be about right for Cattle Egret. Unless anyone can find out how it was measured, I'm not sure we'll get to the bottom of it. But I think the lack of quill sheath on pics (which means it's not a nestling) and the plausible explanation of incorrect measurement technique above, means Cattle Egret is still very much in the running. [/QUOTE]
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Birding
Bird Identification Q&A
Carcass of white heron, Finland
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