ML646743050
Хувь нэмрээ оруулагч
Огноо
Байршил
- Нас
- Тодорхойлоогүй
- Хүйс
- Тодорхойлоогүй
- Зан төрх
- Идээшилж буй
Ажиглалтын дэлгэрэнгүй
One of the locals flew south at rooftop height at 7:05, calling as it passed. The other member of the resident pair arrived from the east at 7:07 and made its way down to the street to pick at a roadkilled rat. After tearing off a few scraps of meat from the carcass, the bird flew up to a nearby power lines of a nearby utility pole. While holding the meat, the raven rubbed its bill against the surface of a partially exposed clamp connector and then deliberately, delicately placed a morsel directly upon the wires themselves, immediately adjacent to the clamp. It let the meat rest there for several minutes, periodically making slight positional adjustments and once tearing off a small chunk, before picking it up and bolting it down. Given the sub-freezing temperatures this morning, it appears that the raven was intentionally warming its meal with this technological heat source, one of the more remarkable cases of tool use that I have personally observed in this species! It eventually flew west at 7:13, while the first bird could still be heard calling to the south
Техникийн мэдээлэл
- Загвар
- NIKON D7500
- ISO
- 32000
- Дурангын урт
- 400 mm
- Гэрэл цацруулагч
- Flash did not fire
- Өрцний тоо
- f/22.0
- Өрцний хурд
- 0.02 sec
- Хэмжээсүүд
- 4699 pixels x 3132 pixels
- Анхны файлын хэмжээ
- 4.92 MB