Contributeur
Sharon Peterson Fichiers multimédias de ce contributeur Profil
Date
Site d'observation
Julia Butler Hansen NWR
Wahkiakum, Washington, United States
Fichiers multimédias de cet endroit Liste illustrée- Âge
- Non précisé
- Sexe
- Non précisé
Détails de l'observation
Note the lack of any distinct yellow near the eyes. Other species considered but eliminated: Trumpeter Swan: 1) Lack of a "door stop head", rather these birds have culmen dished and crown more rounded. 2) these birds have margins between softpart mandibles and head featrhers curved, not straight. 3) as compared to Trumpeter, these birds eyes are more isolated rather than conjoined with the mandible. Whooper Swan: Lack of extensive yellowish on the bills. Mute Swan: lack of orange bill and bill knob. Birds did not vocalize.
Informations techniques
- Modèle
- NIKON D700
- ISO
- 640
- Longueur focale
- 400 mm
- Flash
- Flash did not fire
- f-stop
- f/4.0
- Vitesse d'obturation
- 1/1250 sec
- Dimensions
- 967 pixels x 690 pixels
- Taille originale du fichier
- 454.2 KB