Beskrivelse: In order to see and identify Kelp Gull in Knifiss Lagoon you have to hire a boat to take you near the spot. We saw 2 birds which we identified as Kelp and several Great Black-backed Gulls.
Differences between Great Black-backed Gull and Kelp Gull are nicely described here
http://www.go-south.org/03_Birdlist/lardom_&_larmar.pdf
In short: Kelp Gull has a mirror only on P10, broad white trailing edge along the secondaries and the inner half of the primaries, olive legs and dark eye.
Log ind her for at kommentere fotoet. Er du ikke oprettet som bruger kan du oprette dig som bruger her.
Beskrivelse: In order to see and identify Kelp Gull in Knifiss Lagoon you have to hire a boat to take you near the spot. We saw 2 birds which we identified as Kelp and several Great Black-backed Gulls.
Differences between Great Black-backed Gull and Kelp Gull are nicely described here
http://www.go-south.org/03_Birdlist/lardom_&_larmar.pdf
In short: Kelp Gull has a mirror only on P10, broad white trailing edge along the secondaries and the inner half of the primaries, olive legs and dark eye.
Log ind her for at kommentere fotoet. Er du ikke oprettet som bruger kan du oprette dig som bruger her.
Beskrivelse: In order to see and identify Kelp Gull in Knifiss Lagoon you have to hire a boat to take you near the spot. We saw 2 birds which we identified as Kelp and several Great Black-backed Gulls.
Differences between Great Black-backed Gull and Kelp Gull are nicely described here
http://www.go-south.org/03_Birdlist/lardom_&_larmar.pdf
In short: Kelp Gull has a mirror only on P10, broad white trailing edge along the secondaries and the inner half of the primaries, olive legs and dark eye.
Log ind her for at kommentere fotoet. Er du ikke oprettet som bruger kan du oprette dig som bruger her.
Beskrivelse: Possible Cape Gull Knifiss Lagoon. Notice white mirror on P10 only, broad white trailing edge to the wings, apperently dark eye and possibly olive tinged legs. Upperparts also appers darker than the Great Black-backed Gulls photographed the same day. Any comments to the identification are most welcome.
It surely looks like eighter a kelp or a cape gull as the mirror on p10 and broad trailing egde rules out GBB. But when is comes to kelp (dominicanus) vs cape (vetula) (considered conspecific by some) it gets more difficult. The white mirror is hard to use as a clear indicative, but the dark eye, the olive tigned legs and the appearent flat crown point towards cape gull. Other indications are the very dark back as you mention, but the lower mandible also shows an obvious angle at the gony spot, which points towards cape. Any more pics of this gull?
Silas
I've just uploaded two more pictures of the same bird. Both new pictures are of low quality so I'm not sure if they will be accepted by the netfugl admins.
I just read the paper by Olof Jönsson in the latest Birding World. It's evident that both Cape Gull(s?) and Great Black-backed Gulls are still present in the Khnifiss Lagoon. Access to the lagoon has also improved during the last year as there has been built a new visitor centre along the gravel road just before the old wardens house. Entrance is 10 DH. We paid 350 DH for a two hour boat trip on the lagoon.
Log ind her for at kommentere fotoet. Er du ikke oprettet som bruger kan du oprette dig som bruger her.
Beskrivelse: Three of at least five birds present in the lagoon, presumed male to the right. The birds favoured the same island that held breeding Cape Gulls in 2009.
Primary pattern and leg color is strongly suggesting Great Black-backed Gull, Cape Gulls have however been reported at the same spot quite resently. Any comments to the identification are welcome.
Beskrivelse: One of at least five birds present in the lagoon. The birds favoured the same island that held breeding Cape Gulls in 2009.
Primary pattern and leg color is strongly suggesting Great Black-backed Gull, Cape Gulls have however been reported at the same spot quite resently. Any comments to the identification are welcome.
Log ind her for at kommentere fotoet. Er du ikke oprettet som bruger kan du oprette dig som bruger her.