Colaborador
Ryan O'Donnell Média deste colaborador Perfil
Data
Localização
San Diego Pelagic (27Sep15, 7)
San Diego, California, United States
Média deste local Lista Ilustrada- Idade e sexo
- Idade desconhecida, Sexo desconhecido - 1
- Comportamentos
- Voar
Detalhes da observação
Leader's list had two unidentified Leach's Storm-Petrels. I (RPO) identified one of those as Townsend's on the basis of photos (12:16 PM) showing long white rump, more than half of tail length (rather than about half of tail length of nominate Leach's), along with small compact body shape and prominent carpal bar reaching front edge of wing (ruling out Wilson's). Rare pale-rumped Chapman's wouldn't have rump this bright. Wedge-rumped Storm-Petrel eliminated mostly by probability and range, but also by apparently long tail fork of this bird and by white rump not reaching close enough to tail tip. I am new to identifying Leach's subspecies, and would appreciate correction if this assessment seems to be in error.
Informação técnica
- Modelo
- NIKON D90
- ISO
- 500
- Distancia focal
- 400 mm
- Flash
- Flash did not fire
- f-stop
- f/6.3
- Velocidade do obturador
- 1/2500 sec
- Dimensões
- 554 pixels x 368 pixels
- Tamanho do ficheiro original
- 141.57 KB