Baltic Gulls Larus fuscus fuscus with barnacles on readrings

These Baltic Gulls were photographed as older subadults at Tarastenjärvi dump, Tampere, SW Finland.
They were not seen in Finland on their 1st-summer (2cy), so they might have get these barnacles during their stay at wintering grounds.
Possibly somewhere on eastern African coasts perhaps?

Larus fuscus
2nd-summer Baltic Gull Larus fuscus "CU19" at Tara dump, SW Finland 10.6.2007. Foto: Hannu Koskinen
"CU19" was seen at Tara on this date only. It was ringed as a pullus on 3.7.2005 at Hauho by Jouko Astor.

Larus fuscus
"CU19" one year older as a 3rd-summer (4cy) at Tara 6.7.2008. Foto: Hannu Koskinen
The barnacles have mostly disappeared, only some basic parts of them visible still.

Larus fuscus
2nd-summer Baltic Gull Larus fuscus "CZ21" at Tara dump, SW Finland 25.5.2007. Foto: Markku Kangasniemi
CZ21 was seen 25.5.-31.8.2007 at Tarastenjärvi (not in 2005-2006).
Ringed as pullus at Luopioinen 4.7.2005 by Risto Juvaste.

Larus fuscus
"CZ21" with group of barnacles on readring 25.5.2007. Foto: Markku Kangasniemi

Larus fuscus
2nd-summer Baltic Gull Larus fuscus "CZ21" at Tara dump, SW Finland 10.6.2007. Foto: Markku Kangasniemi

Larus fuscus
"CZ21" at Tara dump on 12.6.2007. Foto: Markku Kangasniemi

Larus fuscus
2nd-summer Baltic Gull Larus fuscus "CZ21" at Tara dump, SW Finland 10.6.2007. Foto: Hannu Koskinen
The barnacles can be easily overlooked too, like in this photo.

Larus fuscus
2nd-summer Baltic Gull Larus fuscus "CZ21" at Karanoja dump, Hämeenlinna, S Finland 21.6.2007. Foto: Hannu Koskinen
The barnacles hardly visible in this photo.

Larus fuscus
3rd-summer (4cy) Baltic Gull Larus fuscus "CNKH" with several barnacles at Tara dump, SW Finland 20.7.2006. Foto: Hannu Koskinen
"CNKH" was seen 16.7.-3.9.2006 at Tarastenjärvi (not seen 2003-2005 and not after 2006).
It was ringed as a pullus at Valkeakoski 27.6.2003 by Risto Juvaste.

Larus fuscus
Larus fuscus
21.7.2006
Larus fuscus
29.7.2006 A "kebab-stick" coming to "break" out soon (see photos below). These beefsticks are common food for Gulls at dumps.
Larus fuscus
15.8.2006
Larus fuscus
15.8.2006

Larus fuscus 27.8.2006 the stick has lost. However, CNKH was not seen later at Tara in 2007-2008,,,

Larus fuscus

Larus fuscus
3rd-summer (4cy) Baltic Gull Larus fuscus "CUCE" with one barnacle on readring at Tara dump, SW Finland 23.5.2009. Foto: Hannu Koskinen

Larus fuscus
Larus fuscus


Baltic Gull Larus fuscus "C32A" with barnacle on readring at Tara dump, SW Finland 7.6.2009. Foto: Hannu Koskinen




An adult Baltic Gull (L. fuscus) with barnacle on readring at Lemmingsvaer, Troms, N Norway 30.7.2009. Foto: Morten Helberg
Photographed over breeding colony Froholm.



Baltic Gull Larus fuscus white "C20X" with barnacle on readring at Tara dump, SW Finland 10.4.2010. Foto: Markku Kangasniemi
A new barnacle species. This white C20X has been visiting annually at Tara, also summer 2009, but without noticing any sign of barnacle!