ML156575711
Přispěvatel
Datum
Lokalita
- Věk a pohlaví
- Neznámý věk, neznámé pohlaví - X
Podrobnosti k pozorování
While studying a group of Spot-fronted Swifts, this bird immediately caught my attention due to distinctive different flight manner (more fluttery) and general jizz (like a flying cigar), so I identified it as Chaetura. The bird was slightly smaller than the Cypseloides, so it was large for a Chaetura swift, approximately the same size as Chimney Swift. This bird showed very dark underparts with no clear contrast with throat. It was very high and it was very difficult to see the upper parts, but a slightly paler rump and tail was noticed (close to pattern of Vaux's Swift... not very conspicuous as in Short-tailed Swift, but it was just a glimpse) I heard no vocalizations. Size alone eliminates most of the expected Chaetura swifts. Underparts pattern different to Chimney Swift, and darker (not olive brown). Only managed to get one poor photo where it is evident different proportions compared to Cypseloides (smaller head and bill, short tail and wings with longer inner primaries making a "bulge") and very dark under parts.
Technické informace
- Model
- NIKON D7200
- ISO
- 3200
- Ohnisková vzdálenost
- 460 mm
- Blesk
- Flash did not fire, auto
- Clonové číslo
- f/5.6
- Expoziční čas
- 1/3200 sec
- Rozměry
- 740 pixels x 493 pixels
- Původní velikost souboru
- 36.52 KB