Tuesday, 16 February 2016

Presumed hybrid Lesser Black-backed Gull x European Herring Gull

While checking gulls on my local rubbish tip yesterday, I found this presumed hybrid Lesser Black-backed Gull x European Herring Gull.

 There was a YLG too, from the breeding colony on the Vistula River.

Sunday, 27 April 2014

Two adult females Caspian Gull Larus cachinnans (both 9cy), trapped at nests during incubation on the Wytyckie Lake, end of April 2014. These birds has been ringed as a chicks in the Kaniv, Dniepr River, Cherkassy district of Ukraine (610 km away), in May 2006. I added the plastic rings. Iris are relatively pale.
T 002059 + 3P23 

 T 002999 + 3P44

Lesser Black-backed Gull with 2cy Caspian Gull (Stara Wieś landfill).

LBBG ad. (L. f. fuscus, Stara Wieś, 17.04.2014))
 L. argentatus 2cy (Stara Wieś landfill, 17.04.2014)
Great Black-backed Gull - rarity in the south-eastern Poland (Stara Wieś landfill, 17.04.2014)
 Caspian Gull from the Wytyckie Lake, here at the landfill near Łęczna.
Larus cachinnans 9cy, probably female. Here in the breeding colony near Zastow Karczmiski (Vistula River). Ringed as pullus cachinnans on May 08 2006 at Wloclawek.
4cy Caspian Gull PHDL photographed 24 April 2014 near Zastow Karczmiski. Ringed as pullus on May  2011 at Jankowice Babice Malopolskie, Poland
Green P410 Caspian Gull photographed on Wytyckie Lake few days ago.

Caspian Gull 4cy, Zastow Karczmiski, 24.04.2014. Yellow PCEE  ringed as pullus on June 08 2011, at Kuznica Warezynska near Katowice. 
 Here a sketch 1cy Lesser Black-backed Gull from last year.

Monday, 14 April 2014

I visited the landfill site near Łęczna (Stara Wieś). There were some ringed gulls:
2cy Caspian Gull (Wytyckie Lakie colony) with a head of  the Brown Bullhead (Ameiurus nebulosus):
Part of the flock of 48 LBBG's

CG 3cy (from the Wytyckie Lake)
Croatian BHG (Siemień pounds)
Finnish LBBG:
Next bird from Finland
4cy Caspian Gull

Caspian Gull, 2cy
Caspian Gull, ad
Black-headed Gull ringed in UK (North Thames Gull Group) 

Sunday, 16 February 2014

Yesterday I got recovery from Romania. Herring Gull ringing by me (01/05/2012) in Lublin province on the Vistula river (breeding colony) was found on 08/02/2014 in Bucharest, Romania. So, bird wintering in area of the Black Sea, which is very unusual for this species. 
Vistula River, summer 2013

 Romania, Bucharest, 08.02.2014
 Maybe the bird is a hybrid (F2 or backross cach x arg) but some influence other species is barely detectable - if it all.

Tuesday, 3 December 2013

Here are few interesting birds ringing in Kąty Rybackie (Baltic coast, 10.10.2013):
YLG 1cy (Larus michahellis)
LBBG (L.fuscus) 1cy
Caspian Gull 1cy

Monday, 2 December 2013

27th November I visited the landfill site near Łęczna (Stara Wieś). There were some 400 Caspian Gulls, 9 Herring Gulls and 13 birds not identified. I've got only few recoveries CG from Wytyckie Lake.
I also sketched there 2cy Caspian Gull (finally finished at home).

Herring Gull 1cy (note pale fringes on primaries).
Caspian Gulls: left 1cy, right 3cy.

Herring Gull 2cy

Caspian Gull 1cy
 Caspian Gull 2cy
Caspian Gull subad.

Lesser Black-backed Gull - 1cy                                                                                                                  
Herring Gull 1cy
Caspian Gulls ad. (left probably female, right male)
 Left CG 1cy, right LBBG 1cy.
Caspian Gull ad. male from Wytyckie Lake.
Caspian Gull ad.
2nd calendar year Caspian Gull

View of gulls sitting on the roof here.