ML179587261
Участник
LynnErla Beegle Media from this contributor Профиль
Дата
Местоположение
Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
Media from this location Иллюстрированный Список Видов- Возраст
- Не указано
- Пол
- Не указано
- Поведение
- В полете
- Теги
- Местообитание; Нет птиц
Примечания
Time 19:21 EDT continuing to enter chimney about 10 per second. The actual hole is very small in this chimney, so they all enter at the same point. This is the N&O retired chimney on 215 S McDowell Street, as seen from a parking garage on Salisbury south of Hargett.
Подробности наблюдения
Conservative estimate, based on counting 100x100 of swirling flock. The swifts entered the chimney at 215 South McDowell (News & Observer) from 7:14 until 7:30. About 10 per second entered the chimney over a period of 15 minutes. There were breaks in between where they were swirling, so another estimate was based on 500 birds entering the chimney per minute for a total of 7 active minutes. They started the entry at 7:14 and the last bird entered at 7:30.See photos.
Техническая информация
- Модель
- COOLPIX S7000
- ISO
- 800
- Фокусное расстояние
- 71.4 mm
- Вспышка
- Flash did not fire, auto
- Диафрагма
- f/6.2
- Выдержка
- 1/15 sec
- Размеры
- 2048 pixels x 1536 pixels
- Исходный размер файла
- 601.45 KB