ML72443911
Přispěvatel
Datum
Lokalita
- Věk
- Nespecifikováno
- Pohlaví
- Nespecifikováno
Poznámky
This female-plumaged Cassin's Finch was photographed by Curtis A. Marantz on 18 October 2017 at the headquarters of the Salton Sea National Wildlife Refuge, Imperial County, California.
Podrobnosti k pozorování
Shortly after Eric called me over saying that he had seen a plump, finch-like bird with a relatively bold supercilium we began hearing the “cher-de-leek” calls of a Cassin’s Finch that I noted to be clearer and sharper than the slurred calls of Purple Finch. After a bit of searching, Eric spotted this bird when it dropped down to the lower branches of a tree and eventually to the ground, where it remained for a short time before flying off. Not too long after this, we relocated the finch when it flew in and landed in a tree overhead, where it remained long enough for me to get some more photos. This was a small and noticeably plump passerine that appeared to have a somewhat larger body than a nearby White-crowned Sparrow, which was a little larger than I had expected from this species. I noted that the conical bill was longer than that of a purple finch, more pointed at the tip, and with a culmen that appeared to be straight. The forehead was steep but the crown was gently rounded on a head that appeared large for the size of the bird. The neck was short and inconspicuous and the body was plump and with an upright posture. I failed to notice both the primary projection and the length of the wings in the field, but I suspect they are visible in my photos. I did note that the tail was about as long as the body without the head and that it was weakly notched at the tip. This was a boldly marked bird, yet its coloration was subtle. The crown, which appeared to be a grayish brown with darker streaking, was demarcated by a dull, whitish supercilium that was at least relatively bold. I also noted some suggestion of an eyering and a dark brown auricular patch that had some internal streaking, but I cannot now recall other details of the face pattern. The underparts were whitish with fine, dark streaking on the throat that blended to broader and better-defined streaks of dusky that extended across the breast, sides, and at the upper belly and foreflanks. I never could see if the undertail coverts were streaked, but the underside of the tail appeared to be dark. Returning to the upperparts, the back and scapulars were a medium-gray color with relatively bold and weak-defined streaks that appeared to be sooty in color. I now have only a vague recollection of the wing pattern, which I think combined some suggestion of paler wingbars with streaking that presumably reflected pale fringes on darker remiges. I also thought the upperside of the tail combined dark feathers with well-defined fringes of a paler color that was presumably either whitish or light gray to produce a striped pattern. The eyes were dark, but I cannot now recall the colors of the bill, legs, or feet.
Technické informace
- Model
- Canon EOS 7D Mark II
- Objektiv
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 1600
- Ohnisková vzdálenost
- 400 mm
- Blesk
- Flash did not fire, auto
- Clonové číslo
- f/6.3
- Expoziční čas
- 1/250 sec
- Rozměry
- 2507 pixels x 1609 pixels
- Původní velikost souboru
- 5.08 MB