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Ring-billed Gull (Larus delawarensis)    Gulls, Terns and Skimmers (Laridae)
Ringnæbbet Måge    Gaviota Pico Anillado
Ring-billed Gull 295    (1 photos)
2008-12-12    Presa Calles (agu), Mexico

Monotypic. 1cy bird. Almost the only gull species to be seen in Ags, and only very local. Laughing Gull (Leucophaeus atricilla) is also seen, but even more rarely.


Ring-billed Gull 782    (1 photos)
2008-12-12    Presa Calles (agu), Mexico

1cy bird. One of the two gull species possible to see in Ags.


Ring-billed Gull 296    (1 photos)
2009-04-09    Presa Rodriguez (agu), Mexico

Monotypic. 2cy-birds.


Ring-billed Gull 840    (1 photos)
2013-02-01    Playa Hermosa (San Blas), Mexico

Adult.


Ring-billed Gull 2293    (2 photos)
2016-05-14    Presa la Vega (jal), Mexico

2cy bird. Very worn wings, still juvenile. 3 birds present today of the species.


Ring-billed Gull 3352    (3 photos)
2020-01-04    Mazatlán (sin), Mexico

Second calendar year. A typical bird with all pale gray mantle and the worn remiges and median coverts. Complete white under part is a good thing to notice when being confused by size and other features when going through photos.

Here with California Gull.



Ring-billed Gull 3348    (2 photos)
2020-01-04    Mazatlán (sin), Mexico

First cycle, 2cy.


Ring-billed Gull 3349    (6 photos)
2020-01-04    Mazatlán (sin), Mexico

Advanced 1 cycle, 2cy. A few secondaries changed on the left wing might be unusual.


Ring-billed Gull 3350    (3 photos)
2020-01-04    Mazatlán (sin), Mexico

Second cycle, 3cy.


Ring-billed Gull 3351    (1 photos)
2020-01-04    Mazatlán (sin), Mexico

Adult.


Ring-billed Gull 3354    (1 photos)
2020-01-04    Mazatlán (sin), Mexico

Adult in basic plumage, streaked head and neck.


Ring-billed Gull 3355    (1 photos)
2020-01-04    Mazatlán (sin), Mexico

1. cycle, 2cy. An advanced example with all pale overtail coverts and greater wing coverts.


Ring-billed Gull 3356    (1 photos)
2020-01-04    Mazatlán (sin), Mexico

Adult in basic plumage. Only a small black mark on P5.


Ring-billed Gull 3357    (1 photos)
2020-01-04    Mazatlán (sin), Mexico

1. cycle, 2cy. Typical bird with gray back and the brownish wing covert patch and the pink bill with black tip and the dark eye characteristic for the first year bird.

Corn on the beach. Doesn´t look like the greatest success. Difficult to digest.



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