ML74934481
- 年齡
- 未確定
- 性別
- 未確定
觀察細節
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.
技術資訊
- 型號
- Canon EOS 7D
- 鏡頭
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 800
- 焦距
- 400 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/6.3
- 快門
- 1/800 sec
- 次方
- 3761 pixels x 2508 pixels
- 原始檔案大小
- 2.99 MB