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Rails: The Once and Future Kings of the Pacific

10,000 Birds

They often become slower breeders, and most importantly, they lose their ability to disperse, meaning they get stranded on the island they live on. And, over time, they become a new species. Pretty much every rock big enough to sustain land birds has been reached by rails and then colonised by rails.

Hawaii 197
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Polygynandry and avian swingers

10,000 Birds

Dale Forbes Mar 16th, 2011 at 8:37 am Hi Laurent, that is a fascinating example of humans responding to difficult environmental challenges. In the case of Acorn Woodpeckers, they are cooperative breeders (as with many other polygynandrous species), which seems to predispose species to polygynandry.

2011 203
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Combined Beat list for 2016

10,000 Birds

All birds are equal on this list; parking lot birds or pelagic species, breeders or fly-overs, all will be accorded the same status and each shall be worth 1 credit on the list. New Zealand Scaup – Aythya novaeseelandiae. New Zealand Grebe – Poliocephalus rufopectus. 12 Jan 2016. Western Australia.

2016 117
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Combined Beats’ List – September

10,000 Birds

All birds are equal on this list; parking lot birds or pelagic species, breeders or fly-overs, all will be accorded the same status and each shall be worth 1 credit on the list. New Zealand Scaup – Aythya novaeseelandiae. New Zealand Grebe – Poliocephalus rufopectus. 12 Jan 2016. Western Australia.

2016 154
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Combined Beats’ list

10,000 Birds

All birds are equal on this list; parking lot birds or pelagic species, breeders or fly-overs, all will be accorded the same status and each shall be worth 1 credit on the list. New Zealand Scaup – Aythya novaeseelandiae. New Zealand Grebe – Poliocephalus rufopectus. 12 Jan 2016. Western Australia.

2016 100
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Combined Beats List – June 2016

10,000 Birds

All birds are equal on this list; parking lot birds or pelagic species, breeders or fly-overs, all will be accorded the same status and each shall be worth 1 credit on the list. New Zealand King Shag – Phalacrocorax carunculatus. New Zealand Grebe – Poliocephalus rufopectus. Eilat Birding Center.

2016 100
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Combined Beats’ List – July 2016

10,000 Birds

All birds are equal on this list; parking lot birds or pelagic species, breeders or fly-overs, all will be accorded the same status and each shall be worth 1 credit on the list. New Zealand Scaup – Aythya novaeseelandiae. New Zealand Grebe – Poliocephalus rufopectus. 12 Jan 2016. Western Australia.

2016 100