Colaborador
Rob Fowler Média deste colaborador Perfil
Data
Localização
Arcata Marsh--Oxidation Ponds
Humboldt, California, United States
Média deste local Lista Ilustrada- Idade e sexo
- Fêmea Adulta - 1; Macho Adulto - 1
Notas sobre o média
In this photo you can see that the wingbar is clearly broader than the trailing edge of the speculum.
Detalhes da observação
Adult male with a female. Photos of female speculum clearly show a broader wingbar vs the trailing edge. According to Reeber's (2015) waterfowl book this is probably the best (only?) way to tell female crecca vs. carolinensis. I've never documented a female crecca in the US so open to suggestions from anyone with more experience.
Informação técnica
- Modelo
- Canon EOS 7D Mark II
- Lente
- EF400mm f/5.6L USM
- ISO
- 320
- Distancia focal
- 400 mm
- Flash
- Flash did not fire
- f-stop
- f/5.6
- Velocidade do obturador
- 1/3200 sec
- Dimensões
- 1302 pixels x 868 pixels
- Tamanho do ficheiro original
- 651.3 KB