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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. L

    Bird for ID from China

    Thanks a lot.
  2. L

    Bird for ID from China

    Which species of bird? From Northwest China.
  3. L

    A question about sexual dimorphism

    Thank you. Let me make my question concrete. Only considering plumage color, what about the proportion of sexual dimorphism in birds by human eyes. Which part are larger? Dimorphism or homomorphism? Sexual dimorphism here means easy to identified by human eyes in wild.
  4. L

    A question about sexual dimorphism

    Sexual dimorphism and homomorphism in birds, which one account for larger proportion? I think this question is easier to answer than the former one.
  5. L

    A question about sexual dimorphism

    I wanna known what's the proportion of sexual dimorphism in birds. Is there anyone known this? I tried to search this on internet, but failed to find useful information.
  6. L

    Waterbirds from Oslo for ID

    Which species of gulls?
  7. L

    Bird from Oslo for ID

    Thank you.
  8. L

    Bird from Oslo for ID

    Photos were took in Vigeland Sculpture Park. It looks like some species of crow I have never seen.
  9. L

    Is this a Southern Tchagra Shrike : South-western Cape of South Africa ???

    Shrike's bill The bill of shrike is strong and has a hook.
  10. L

    Is this a Southern Tchagra Shrike : South-western Cape of South Africa ???

    Shrike? I don't think it's a shrike. Shrike would not have a bill so weak.
  11. L

    Which species ?

    Thanks.
  12. L

    Which species ?

    Which species of hawk and small bird in these pictures ? They are not distributed in China. I even have no field guide book for checking. photos link: http://news.qq.com/a/20091103/000682.htm
  13. L

    Not to sure

    Yes, It looks like the Common Snipe when we advert to the detail. It's bill was long and straight. The underside of the ringt wing seem to be white.
  14. L

    Kentish Plovers? north east China

    I think they are Kentish Plovers. Sand Plovers would not have a white ring around their neck. And in these photos, especially the first one, the white ring was intact and clear. Due to the point of view, some individual's neck ring was not so obvious. But they were the same size. So I think...
  15. L

    Not to sure

    I think woodcock's bill will not be that long. It must be a snipe. But it's hard to identify which species of snipe.
  16. L

    Id from San Francisco

    Are they wild in USA? I think this speicies had been introduced to China for poultry industry.
  17. L

    Which species of hawk? China

    Some person said that it's a Japanese Sparrowhawk(Accipiter gularis) which is similar to the Besra(Accipiter virgatus).
  18. L

    Which species of hawk? China

    Photographed on South China.
  19. L

    Cuckoos from China for ID

    More question, What is the marking under tail covert look like in Eurasian Cuckoo?
  20. L

    Cuckoos from China for ID

    Useful imformation Thank you for your reply
  21. L

    Cuckoos from China for ID

    Thank you, mark Cuculus Cuckoos are really difficult to identify without calling. In China, there are many species of cuckoos coexistent. As you known, Eurasian Cuckoo is widespread around the world. So many bird watchers might be familiar with the character of the Eurasian Cuckoo. So as to the...
  22. L

    Cuckoos from China for ID

    These two photos were from China. The first one was photographed in Shanxi and the second one was photographed in Yunnan.(see pic.1 for location) Please ID these two cuckoos. Are they Common Cuckoo(Cuculus canorus) or Oriental Cuckoo(Cuculus saturatus)?
  23. L

    Hello,I am from China

    Hello, everybody. I am an ornithologist and birds watching enthusiast from Guangzhou, China. I hope to share every interesting thing about birds.
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