Vịt_Laysan
Vịt_Laysan
Thực đơn
Vịt_LaysanLiên quan
Vịt LaysanTài liệu tham khảo
WikiPedia: Vịt_Laysan http://www.birds.cornell.edu/clementschecklist/dow... http://elibrary.unm.edu/sora/Auk/v116n03/p0792-p08... http://www.fws.gov/midway/ladu.html http://www.fws.gov/pacific/ecoservices/endangered/... http://www.fws.gov/pacific/news/2005/Laysan%20duck... http://www.gpo.gov/fdsys/pkg/FR-ng%C3%A0y http://www.usgs.gov/ecosystems/pierc/files/factshe... http://www.usgs.gov/newsroom/article.asp?ID=1843 http://www.usgs.gov/newsroom/article_pf.asp?ID=157... http://web.archive.org/web/20060927222216/http://w...