Contributor
Adam Dudley Media from this contributor Profile
Date
Location
San Francisco Bay Trail--Colma Creek mouth
San Mateo, California, United States
Media from this location Illustrated Checklist- Age
- Not specified
- Sex
- Not specified
Observation details
Immature bird associating with a mixed flock of california and western gulls of mixed age. Paler and larger than California gulls but smaller and more delicate than the westerns; light chocolate overall with diffuse dark area around eye. Bill dark with paler area around base. Wingtips darker than general coloration of tertials and upperparts. Tertials pale brown, same color as rest of upper parts.
Technical information
- Original file size
- 1.23 MB