martes, 25 de octubre de 2011

lunes, 26 de septiembre de 2011

miércoles, 14 de septiembre de 2011

Presumed Heuglin's in Tampere

A bunch of photos showing a presumed 2cy Heuglin's Gull, Larus (fuscus) heuglini. Pictures courtesy of Petri Salo and Hannu Koskinen.







jueves, 8 de septiembre de 2011

Larus fuscus fuscus.


Baltic Gull, Larus fuscus fuscus. 2cy?


This Baltic shows an amazing state of moult in primaries:

Highly worn feathers -- P1-P4 and P9.
Moderate worn feathers -- P5-P8 and P10.

Note that P10 seems to be 2nd generation, unlike P1-P4 (3rd generation?). This pattern indicates two irregular moult waves (most probably in winter and spring).


lunes, 5 de septiembre de 2011

Larus fuscus fuscus juvenile



Baltic Gull, Larus fuscus fuscus, juvenile. August 2. Note specially the plain and simple pattern on wing coverts and tertials. Dark overall appearance and thin bill.


domingo, 31 de julio de 2011

Larus fuscus fuscus 2cy

Baltic Gull Larus fuscus fuscus 2cy. July 2010.

Note the 'Caspian-like' head pattern, including a tiny brown line on rear neck.

martes, 21 de junio de 2011

Larus argentatus argentatus


Scandinavian Herring Gull, juvenile. Note the plain scapulars and whitish overall looking. Stout and heavy structure. Note also the bird on the background.

lunes, 30 de mayo de 2011

Larus fuscus fuscus. White C20C


Baltic Gull, Larus fuscus fuscus, adult. July 2010. Ringed in Finland, 28 June 1996. Hence, this beauty has 14 years and one month...

miércoles, 25 de mayo de 2011

Larus argentatus White CCC14


Scandinavian Herring Gull, Larus argentatus argentatus. Juvenile, August 2010. Ringed in Finland in 2010. W[CCC14]

martes, 3 de mayo de 2011

BALTIC GULL. ADULT


Baltic Gull Larus fuscus fuscus. Tampere dump, Finland. Aug 19, 2010.


Note the small white subterminal mark on P9 (only in the left wing).