ML618230686
作者
日期
地点
- 年龄和性别
- 幼鸟,性别未知 - X
- 行为
- 喂食幼鸟; 觅食或者进食
- 发声
- 鸣叫
- 回放
- 未使用回放
媒体文件注释
1st segment: flock feeding in red pine. 2nd segment: BCCH warning calls at 45 secs and RECR at 46 secs as a Merlin flew over the pines. Just before the BCCH calls, there were loud jip-jips given (not recorded). The noisy flock became instantly silent until a few type 4's started their plicky calls. More noisy feeding sessions are added on to contrast the silence during the Merlin sighting.
观察细节
Continuing large flock feeding in red pines in the yard. Family groups of mostly types 2 and 4 but maybe type 12 also recorded (it looks like that type 7/12 variant but could it also be a variation of type 2?). Many RECR were seen feeding on the ground, on the lawn and driveway, picking up dirt, grit and maybe fallen pine seeds. A few were brown-streaked juvenile/immatures that were showing some yellow in their plumage. It could be that these are birds from the nestings in early March. Younger juveniles were being fed in the pines. All could fly pretty well. They are really burning through the remaining cone crop, foraging from the crown to the lower branches. At one time, they were noisily feeding when a few warning calls came just before a Merlin whizzed over the flock. The silence that followed was remarkable, until a few type 4's started 'plicking'. It took a few tense moments for the young to start begging again (see 4th recording). Shortly after the Merlin sighting, most of the flock of 30+ took to flight, heading SE but several family groups stayed behind to continue feeding. A few type 2's called loudly as if trying to contact the departed flock. Estimated number of birds is a minimum of 45. Quite a circus.
额外物种
技术信息
- 录音机
- Samsung Galaxy Tab E Lite: model SM-T113
- 话筒
- 附件
- 原始文件大小
- 15.38 MB