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Topic: 蒲台島的猛禽 Raptor on Po Toi Island (Read 589 times) |
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bfspoonbill
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蒲台島的猛禽 Raptor on Po Toi Island
« on: Nov 8th, 2003, 10:33pm » |
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Sorry, my English (special terms for bird) is not good enough to describe fully the unknown raptor on Po Toi island.
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今天下大雨，但是已經到了蒲台島，唯有隨便走一趟。
在天后廟空地回望碼頭，見一隻猛禽在右邊的小島盤旋，不是Ｖ尾而是明顯圓扇形 的，身體粗壯的。用雙筒看後，不能即時猜測牠是甚麼。
牠翼的比例很像是鵰，最前端羽毛的『手指』清晰地散開。牠的下巴至胸腹部是白 的，而牠的背部是以淺啡色為主，初級飛行翼等地方是深啡色的。牠的翼背也有一 些白斑。牠的頸項很短很粗。
最特別的是牠尾部從底下看，最後部份是很明顯白色弧帶來的。
呀！忘記了一件事。牠滑飛時，並沒有像西貢白腹海鵰的明顯Ｖ形姿勢的。
牠兩爪抓著一個四腳小動物。但是沒有單筒在身，那雙筒望遠鏡倍數不足，所以無 法看清楚。
最後，牠向左飛，在碼頭對上的山下潛，失去蹤影了，到下午回程也不再見到牠了 。可能是不停下雨，所以不再出來了。
請問牠會是那些品種呢？是否白腹海鵰幼鳥呢？（牠不像西貢碼頭的老吧！？）請 問大家曾在蒲台島見過甚麼非麻鷹猛禽，可供猜測呢？
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| « Last Edit: Nov 8th, 2003, 11:52pm by bfspoonbill » |
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Falcon
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Re: 蒲台島的猛禽 Raptor on Po Toi Island
« Reply #1 on: Nov 9th, 2003, 11:19am » |
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I think it should be a Bonelli's Eagle. 
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bfspoonbill
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Re: 蒲台島的猛禽 Raptor on Po Toi Island
« Reply #2 on: Nov 9th, 2003, 3:27pm » |
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Thanks for the brain-storming idea, no matter whether it is a correct guess or not.
BTW, do you have (or do you know any site has) any photo of this bird, both from the bottom and from the top? The sketch inside "Birds of HK and Southern China" is a bit different from what I saw. It would be helpful if I can compare with a photo of real bird.
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bfspoonbill
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Re: 蒲台島的猛禽 Raptor on Po Toi Island
« Reply #5 on: Nov 9th, 2003, 10:30pm » |
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Thanks for your links and suggestions. I've reviewed all the images.
The "finger" of the common buzzard photo is not as obvious as the one I saw. The major white colour of the body from bottom view apparently fit the observation though. But the dark lines on the white area were not seen. Maybe it was due to too small image from 8X binocular. I'm not sure. But the much curvy rear part of Buzzard's wings is apparently wrong. The end of the Buzzard's tail is not as light as seen.
The Bonelli's Eagle does fit better for the shape, especially the wings and the "fingers". But the end of tail is not light in colour.
If there is any in-flight juvenile White-Bellied Sea Eagle photo, it may be more helpful.
It should be "not smaller than" an adult kite. Buzzard or osprey is a bit smaller.
If it is to be osprey, the brownish colour (both light and darker) and white/brown pattern on the top part of the wings have to be explained.
But anyway, it would be the best if experienced birder can advise what raptor species they have seen on Po Toi.
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| « Last Edit: Nov 9th, 2003, 10:38pm by bfspoonbill » |
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