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Lokalitet:
Fujian province, Min Jiang estuary - Kina
2010-05-12
Fotograf: Martinez Jonathan - Se profil

Titel: Hybrid Chinese Crested Tern x Greater Crested Tern (Thalasseus bernsteini x bergii)

Beskrivelse: We find this interesting birds during a trip to Min Jiang on may. Note the bill shape rather straight with black tip, the light grey mantle for the bernsteini influence and the black capped not reaching the bill for the bergii side. A similar bird have allready been seen on June 2009 at the same place (article can be read here http://www.birdingintaiwan.org/ ) This bird was soiled as well as many other one at that place, just visit any fishing port in China and you will understand why, a other big threat on this hight endangered species.

Uploadet 2010-10-12 Publiceret 2010-10-12 Thalasseus bergii x Thalasseus bernsteini Swift Tern x Chinese Crested Tern
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Kommentarer
Klaus Malling Olsen
13. okt. 2010 kl. 11:18
Thanks to Martinez for mailing this photo, a perfect supplement to the excellent photoes of Chinese Crested Tern already aviable on Netfugl. From the aviable photoes, Chinese Crested shows stronger bill with broader black tip in most, black cap reaching forehead and clearly paler upperparts; the upperpart colouration is right midway between CCT and GCT. Anyone interested in a tour for Chine Crested and other Taiwanese/E China specialities? Then mail me: klausmalling@gmail.com). Tak til Martinez for dette enestående foto. Der ligger allerede adskillige fine "ægte" Chinese Crested Tern på Netfugl. Denne fugl er klart en hybrid, da en ren CCT ville have tydeligt lysere overside, bredere næb med bredere sort spids samt sort pande så tidligt i yngletiden somm her;i lighed med Splitterne fældes pandefjerene dog under yngleplejen. En ægte CCT ville have så lys overside som en Dværgterne, og uden at have set arten tror jeg at man grundet lyshed samt næbtegning (gult med sort spids) vil kunne opfatte CCT som en art gigantisk Dværgterne. Dét er kun gætterier, men er nogle interesserede i en tur efter denne og andre specialiteter i Taiwan/Ø Kina må man gerne rette henvendelse på min mail, klausmalling@gmail.com. Så kunne der arrangeres et fælles forsøg i juni 2011.
Martinez Jonathan
14. okt. 2010 kl. 06:40
Hi Klaus, Thanks for your additional comments on this bird.

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