ML482616231
Beitragende/r
Scott Ray Medien dieser/s Beitragenden Profil
Datum
Ort
Hummingbird House - Stanley Home
Mountrail, North Dakota, United States
Medien von diesem Ort Illustrierte Checkliste- Alter
- nicht spezifiziert
- Geschlecht
- nicht spezifiziert
Beobachtungsdetails
This bird first appeared yesterday and was identified as Selasphorus sp. After sifting through hundreds of photos looking for some that might show any of the published clues used to separate the two nearly identical species, Rufous and Allen's Hummingbird, I am fairly confident that this is a Rufous. Many of the field marks are extremely subtle. Allen's trademark pin-shaped R5 feather only occur in the adult male. So being an imm bird adds to the identification difficulty. I believe it is an imm male. Separating the two species is all in the tail feathers, particularly their shapes. The slight dent in the lateral vein of R2 seems to be the only diagnostic indication of a Rufous instead of Allen's at this age.
Technische Angaben
- Modell
- Canon EOS R5
- Objektiv
- RF800mm F11 IS STM + EXTENDER RF1.4x
- ISO
- 20000
- Brennweite
- 1120 mm
- Blitz
- Flash did not fire
- Blende
- f/16.0
- Belichtungszeit
- 1/800 sec
- Abmessungen
- 3539 pixels x 2366 pixels
- Größe der Originaldatei
- 2.72 MB