ML110098371
Contributeur
Date
Site d'observation
- Âge
- Non précisé
- Sexe
- Non précisé
Détails de l'observation
Very soon after I arrived, Matt Fraker spotted one perched with ravens on the hill to the N of the trash piles but it quickly took off with the ravens and headed NW and landed on distant powerlines. A Peregrine flushed the corvids, and multiple ravens and the crow all flew out of sight to the W. About 20 minutes later a group of 5 crows flew in from the SE, briefly landed on some fencing, and then promptly jumped into the trash and began foraging together. The group of 5 were all seen simultaneously for quite some time until about 2pm when they all left, heading low to the N. At least 3 returned to the trash pile again at 2:40pm. I suspect there were actually 6 total, but can only really confirm 5. They were much smaller than Chihuahuan Raven but chunkier and broader-shouldered than male Great-tailed Grackles. The shiny, bluish-purple gloss on their mantles was often strikingly obvious. Their calls were nasal and like a croaking frog. Many photos.
Informations techniques
- Modèle
- Canon EOS 7D
- Lentille
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 500
- Longueur focale
- 400 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/6.3
- Vitesse d'obturation
- 1/640 sec
- Dimensions
- 4190 pixels x 2794 pixels
- Taille originale du fichier
- 4.92 MB