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Subject: 請問臉上多兩條黃線有物分別 [Print This Page]

Author: dvmrp Time: 21/11/2011 22:26 Subject: 請問臉上多兩條黃線有物分別

Author: HFCheung Time: 22/11/2011 15:04

成鳥發情時期的裝飾，主要在夏天出現。

張浩輝

Author: dvmrp Time: 22/11/2011 16:24

多謝回復，問多樣，雌雄都一樣？

Author: HFCheung Time: 28/11/2011 13:47

Yes. Same for male and female.

The length of the bill can be used to distinguish male to female. However, this is not easy at all. There may be other methods as well. We need careful birdwatchers or photographers to work on problems like this.

HF Cheung

Author: dvmrp Time: 29/11/2011 01:13

I see. Thanks.

Author: evcom2012 Time: 18/01/2012 17:17

哦~原來是這樣
感謝大大分享~~

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