ML52511421
Beitragende/r
Bobby Brown Medien dieser/s Beitragenden Profil
Datum
Ort
Williamsport Dam
Lycoming, Pennsylvania, United States
Medien von diesem Ort Illustrierte Checkliste- Alter
- nicht spezifiziert
- Geschlecht
- nicht spezifiziert
Beobachtungsdetails
Flew in with about 20 RBGU and 2 HERG near dusk, joining the group of a couple hundred gulls (RBGU and BOGU) already present. Very dark back and light head led me to pay particular attention to the bird. Bill was predominantly black. Size intermediate between RBGU and HERG, which were both present to compare. The bird took flight on a couple occasions, where the mostly white tail base with black tail band were noted. The underside of the body seemed fairly light in contrast to the dark back.
Technische Angaben
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