Internet Bird Collection (IBC) Explorer la collection
ML201668271 IBC 1186888
Contributeur
Malcolm Mark Swan Fichiers multimédias de ce contributeur Profil
Date
Site d'observation
Shannon
Ogle, Illinois, United States
Fichiers multimédias de cet endroit Liste illustrée- Âge
- Non précisé
- Sexe
- Non précisé
Commentaires
possible immature male stretching wings among corn stalks. Snow started falling while video-ing this owl. Several birders were watching him or her from busy State Route 72, 3 miles west of Shannon. The bird was 440 feet away, hence this footage is cropped by half vertically and horizontally. The distance was estimated from the size of the bird (2 ft), the 18% of the 3.92 mm-wide CMOS receptor (how much the bird covered the frame), and the maximum focal length of the camera (78mm) x 2 (tele-extender attached). Let me know if my calculation is flawed. Elevation: 291 m. Date added to IBC: June 23, 2016.
Collection
Internet Bird Collection (IBC)
Informations techniques
- Caméra
- Microphone
- Accessoires
- Taille originale du fichier
- 27.95 MB