ML616196956
Contributeur
Noah Arthur Fichiers multimédias de ce contributeur Profil
Date
Site d'observation
San Francisco Bay Trail--Coyote Creek Lagoon
Alameda, California, United States
Fichiers multimédias de cet endroit Liste illustrée- Âge
- Non précisé
- Sexe
- Non précisé
Détails de l'observation
Beat to hell 1st-cycle, still identifiable by overall whiteness and tail/rump. Superficially very similar to Mongolian Gull, but the tail has too broad of a dark band, and the tummy is too dark. American Herring and its hybrids are ruled out by the very white rump and undertail coverts with sparse dark spotting, plus overall whiteness (but with dark wingtips). Slaty-backed is ruled out by the pale whiteness of the scapulars; those would have dark patterning on even a worn Slaty.
Informations techniques
- Modèle
- Canon PowerShot SX60 HS
- ISO
- 100
- Longueur focale
- 10.2 mm
- Flash
- Flash did not fire
- f-stop
- f/4.5
- Vitesse d'obturation
- 1/400 sec
- Dimensions
- 873 pixels x 617 pixels
- Taille originale du fichier
- 205.18 KB