ML273396771
Colaborador
Carl Haynie Média deste colaborador Perfil
Data
Localização
Lake Sammamish SP
King, Washington, United States
Média deste local Lista Ilustrada- Idade
- Não especificado
- Sexo
- Não especificado
Notas sobre o média
dark-billed bird on bottom, pale-billed bird above
Detalhes da observação
Would like opinions on these suspected F/juv BAGOs. Mostly pale bill on one bird, noticeable manes on both, and fairly steep foreheads. In flight, only a modest amount of white in wings. On flight shot of darker-billed bird, there's seemingly only 6 white secondaries, and it lacks the dark bar splitting the white as in first bird (significant? a trait of juv?). I had this latter one labeled Common/Barrow's for a time and can be convinced just to call both these birds that way given that on rare occasions F Common can have a mostly pale bill (Sibley, 2010 paper). I suspect the dark billed bird is a juv.
Informação técnica
- Modelo
- DSC-RX10M4
- Lente
- 8.8-220mm f/2.4-4.0
- ISO
- 800
- Distancia focal
- 220 mm
- Flash
- Flash did not fire
- f-stop
- f/4.0
- Velocidade do obturador
- 1/400 sec
- Dimensões
- 1024 pixels x 683 pixels
- Tamanho do ficheiro original
- 447.88 KB