ML445223331
Beitragende/r
Anonymous Medien dieser/s Beitragenden
Datum
Ort
Grasslands
Kittitas, Washington, United States
Medien von diesem Ort Illustrierte Checkliste- Alter und Geschlecht
- adultes Männchen - 1
- Verhalten
- Balz, Balzverhalten oder Paarung
- Tonaufnahmen
- stumm
- Klangattrappe
- nicht spezifiziert
Kommentare
Male Costa's Hummingbird performing a dive display to a female Anna's Hummingbird. The Anna's was in the process of constructing a nest. The nest was incomplete and had no eggs at the time and consisted of only of a thin layer of spider silk.
Beobachtungsdetails
Small green hummingbird with a short tail, purple, helmeted gorget with long gorget tails. Green breast with whitish throat and white ear patch. The bird was seen performing a shallow "U"-shaped dive display for an Anna's female. The dive display produced a high-pitched rising and then descending noise. The dive display sounds are drowned out by a noisy House Finch but are easily visible on the spectrogram and consist of a thin, rising then falling whistle approaching 10k Hz at the highest pitch.
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Technische Angaben
- Aufnahmegerät
- iPhone 11
- Mikrofon
- internal
- Zubehör
- Größe der Originaldatei
- 4.83 MB