ML88259971
- 年齡
- 未確定
- 性別
- 未確定
觀察細節
we observed 24 Red Crossbills during the day: one group of 11; one group of five, several groups of two to three, and singletons. All RECRs occurred in areas with high densities of Red Spruce. Glenn Hodgkins recorded the calls from each group using his iPod. Glenn subsequently submitted the best sonograms to Matt Young, at Cornell, for analysis. From the calls recorded from the group of 11, Matt estimated that these 11 included at least seven "Type 10" and four "Type 3". Believed to be only the third time that Type 3's have been documented in Maine, the first two on Monhegan in the fall/winter of 2012/2013. Finally, among all 24, we estimate a ratio of 80% males to 20% females.
技術資訊
- 型號
- Canon PowerShot SX60 HS
- ISO
- 400
- 焦距
- 247 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/8.0
- 快門
- 1/250 sec
- 次方
- 4608 pixels x 3456 pixels
- 原始檔案大小
- 3.93 MB