Gull-billed Tern
Gelochelidon nilotica

– medium-sized tern, smaller than Common Black-headed Gull
– diurnal migrant, possibly nocturnal as well
– migrates singly or in small loose flocks


Gull-billed Tern Gelochelidon nilotica, 2CY
BIF1233, 07/01/2015, Hawassa, Ethopia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, 2CY
BIF1234, 07/01/2015, Hawassa, Ethopia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, 2CY
BIF1235, 07/01/2015, Hawassa, Ethopia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, 2CY
BIF1643, 07/01/2015, Hawassa, Ethopia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, 2CY
BIF1644, 15/02/2015, Khawr Dhurf, Oman, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, AD BREED
BIF1645, 22/06/2016, Tsagaan Nuur, Mongolia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, AD BREED
BIF1646, 22/06/2016, Tsagaan Nuur, Mongolia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, AD BREED
BIF1647, 22/06/2016, Tsagaan Nuur, Mongolia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, AD BREED
BIF1648, 22/06/2016, Tsagaan Nuur, Mongolia, Mathias Putze

Gull-billed Tern Gelochelidon nilotica, 1CY
BIF1649, 15/09/2016, Besh Barmag, Azerbaijan, Michael Heiß

Gull-billed Tern Gelochelidon nilotica, 1CY
BIF1650, 15/09/2016, Besh Barmag, Azerbaijan, Michael Heiß

Gull-billed Tern Gelochelidon nilotica, AD BREED
BIF1651, 01/05/2011, Korgalzhyn, Kazakhstan, Patrick Franke

Gull-billed Tern Gelochelidon nilotica, AD BREED
BIF1652, 01/05/2011, Korgalzhyn, Kazakhstan, Patrick Franke

Gull-billed Tern Gelochelidon nilotica
BIF1653, 14/09/2011, Besh Barmag, Azerbaijan, Michael Heiß


Gull-billed Tern Gelochelidon nilotica
Siberian Chiffchaff Phylloscopus tristis
BIF1714, 14/04/2011, Aqkoel, Kazakhstan, Patrick Franke

comparison species:
Sandwich Tern
Common Tern
Arctic Tern

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