Участник
John O'Donnell Media from this contributor Профиль
Дата
Местоположение
planted spruces and pines north of big spring
Fond du Lac, Wisconsin, United States
Media from this location Иллюстрированный Список Видов- Возраст
- Не указано
- Пол
- Не указано
- Голоса
- Flight call; Flight song; Песня
- Воспроизведение
- Playback not used
Примечания
Red Crossbills have been observed in this location for the last three weeks; and 30 Red Crossbills were observed here this morning. We recorded at least two (probably more) vocalizing birds and sent the recording to Cornell University where analysis of the recording showed that both Type 2 (Ponderosa Pine) and Type 3 (Western Hemlock) were present on March 4th. We do not know how many of each type were present, and we also do not know which "type" was engaged in courtship today. Three separate Red Crossbill entries were therefore made for this date -- one for Red Crossbill courtship displayed by a pair of unknown Type, one entry for Red Crossbill Type 2, and this entry for Red Crossbill Type 3.
Техническая информация
- Видеокамера
- SONY IC Recorder
- Микрофон
- Вспомогательная аппаратура
- Исходный размер файла
- 1.79 MB