这篇文章的共同创作者是 Roger J. Lederer, PhD. Roger Lederer博士是一位鸟类学家,并且创办了Ornithology.com野鸟资讯网站。Lederer博士教授、研究和书写鸟类超过40年,到过100多个国家研究鸟类。他是美国加州州立大学奇科分校的生物科学荣誉退休教授,并担任生物科学系主任和自然科学学院院长。Lederer博士写过逾30多篇研究论文和10本鸟类书籍,以及标题为《Ecology and Field Biology》的课本。他为英国广播公司(BBC)、《国家地理》杂志、美国全国公共广播电台、ABC新闻台、吉尼斯世界纪录以及多家组织和出版社提供过咨询。
本文引用了15条参考,详情参见页面底部。
这篇文章已经被读过116,610次。
鸭子也被叫做水鸟,常在湖边,河边以及池塘边出现。[1] 有些种类的鸭子很容易区分公母,但是有些种类的公母区别就不是很明显了。不过,一旦你知道应该观察什么,很快就可以区分出公鸭和母鸭。
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参考
- ↑ https://animalcorner.co.uk/animals/ducks/
- ↑ https://animalcorner.co.uk/animals/ducks/
- ↑ http://www.wildfowl-photography.co.uk/identification/female-ducks.htm
- ↑ https://animalcorner.co.uk/animals/ducks/
- ↑ http://birdweb.org/birdweb/bird/canvasback
- ↑ https://www.nwf.org/Wildlife/Wildlife-Library/Birds/Wood-Duck.aspx
- ↑ http://myfwc.com/wildlifehabitats/profiles/birds/waterfowl/mottled-ducks/
- ↑ http://www.allaboutbirds.org/guide/Mallard/id
- ↑ http://keeping-ducks.bafree.net/how-to-tell-the-difference-between-male-and-female-ducks.php
- ↑ http://myfwc.com/wildlifehabitats/profiles/birds/waterfowl/mottled-ducks/
- ↑ https://www.nwf.org/Wildlife/Wildlife-Library/Birds/Wood-Duck.aspx
- ↑ http://www.wildlifedepartment.com/wildlifemgmt/species/ruddyduck.htm
- ↑ http://www.metzerfarms.com/SexingBirds.cfm
- ↑ http://keeping-ducks.bafree.net/how-to-tell-the-difference-between-male-and-female-ducks.php
- ↑ http://www.nzdl.org/gsdlmod?e=d-00000-00---off-0fnl2.2--00-0----0-10-0---0---0direct-10---4-------0-1l--11-en-50---20-about---00-0-1-00-0--4----0-0-11-10-0utfZz-8-00&a=d&c=fnl2.2&cl=CL1.1&d=HASH01f4d3b2be7f17d0abb3d580.6.4#HASH01f4d3b2be7f17d0abb3d580.6.4
- ↑ http://www.nzdl.org/gsdlmod?e=d-00000-00---off-0fnl2.2--00-0----0-10-0---0---0direct-10---4-------0-1l--11-en-50---20-about---00-0-1-00-0--4----0-0-11-10-0utfZz-8-00&a=d&c=fnl2.2&cl=CL1.1&d=HASH01f4d3b2be7f17d0abb3d580.6.4#HASH01f4d3b2be7f17d0abb3d580.6.4
- ↑ http://www.nzdl.org/gsdlmod?e=d-00000-00---off-0fnl2.2--00-0----0-10-0---0---0direct-10---4-------0-1l--11-en-50---20-about---00-0-1-00-0--4----0-0-11-10-0utfZz-8-00&a=d&c=fnl2.2&cl=CL1.1&d=HASH01f4d3b2be7f17d0abb3d580.6.4#HASH01f4d3b2be7f17d0abb3d580.6.4
- ↑ http://keeping-ducks.bafree.net/how-to-tell-the-difference-between-male-and-female-ducks.php
- ↑ http://www.majesticwaterfowl.org/artquacks.htm
- ↑ http://www.gma.vic.gov.au/education/better-hunting/know-your-waterfowl/game-waterfowl-guide
- ↑ http://www.ducksworld.com/?page_id=104
- ↑ http://keeping-ducks.bafree.net/how-to-tell-the-difference-between-male-and-female-ducks.php
- ↑ http://www.fao.org/docrep/005/y4359e/y4359e07.htm
- ↑ http://www.gma.vic.gov.au/education/better-hunting/know-your-waterfowl/game-waterfowl-guide
- ↑ http://www.fao.org/docrep/005/y4359e/y4359e07.htm
- ↑ http://www.gma.vic.gov.au/education/better-hunting/know-your-waterfowl/game-waterfowl-guide
- ↑ http://www.gma.vic.gov.au/education/better-hunting/know-your-waterfowl/game-waterfowl-guide
- ↑ http://www.fao.org/docrep/005/y4359e/y4359e07.htm
- ↑ http://www.gma.vic.gov.au/education/better-hunting/know-your-waterfowl/game-waterfowl-guide
- ↑ http://www.gma.vic.gov.au/education/better-hunting/know-your-waterfowl/game-waterfowl-guide
- ↑ http://www.gma.vic.gov.au/education/better-hunting/know-your-waterfowl/game-waterfowl-guide
- ↑ http://keeping-ducks.bafree.net/how-to-tell-the-difference-between-male-and-female-ducks.php
- ↑ http://www.allaboutbirds.org/guide/Mallard/id
- ↑ http://www.wildfowl-photography.co.uk/identification/female-ducks.htm
- ↑ http://www.pet-informed-veterinary-advice-online.com/bird-sexing.html#bird-vent
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