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Title: 咀色 Bill Colours of Roseate Tern Post by pan on May 16th, 2005, 11:00am 好開心又可以見到佢地d 靚靚相, 希望佢地今年生多幾"藪" ;D 對燕鷗的咀色有d 好奇。 ::) 以粉紅燕鷗為例: 香港見到的粉紅燕鷗, 有時黑咀, 有時紅咀 ( 唔知有冇人試過同一時間紅黑都見到) 係咩因素影響佢地ge 咀色?繁殖期 同 非繁殖期之分? or 因為佢地來自唔同鄉下, 所以唔同? 換句話說香港見到的粉紅燕鷗, 來自好幾多個地方? ??? thx :D~等我考埋個試,就第一時間去探下佢地先~ |
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Title: Re: 咀色 Post by Hendrix on May 16th, 2005, 11:32am what I got 2 years ago, some is all red, some is partly red/black. is a transition progess ? http://look.com.hk/wings/tern/rose/005.jpg |
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