Collaboratore
Data
Località
- Età e sesso
- Maschio immaturo - 1
Dettagli dell'osservazione
A continuing immature male from yesterday was first seen briefly at 11:38 am and then for several minutes starting at 12:24 pm foraging on blue salvia by a white picket fence on the east side of the residence located at 9119 Bay Avenue in North Beach. As compared with a Ruby-throated Hummingbird, this bird appears to have a longer bill, shorter tail and more blunt or rounded wingtips, as well as a more grayish crown and auriculars, duller green upperparts and dingier grayish, not green, underparts. Behaviorally, this bird often spread its tail while foraging, while a RUHU usually holds its tail fairly still while hovering. Tentatively identified as a BCHU by hummingbird expert Bruce Peterjohn and others. Thanks to Jim Stasz for the find and hospitality.
Informazioni tecniche
- Modello
- Canon PowerShot SX70 HS
- Lenti
- 3.8-247mm
- ISO
- 250
- Lunghezza focale
- 247 mm
- Flash
- Flash did not fire
- f-stop
- f/8.0
- Velocità otturaore
- 1/1600 sec
- Dimensioni
- 5184 pixels x 3456 pixels
- Dimensione originale file
- 1.92 MB