ML21770101
Laguntzailea
Robert Dobbs Laguntzaile honen media
Data
Kokapena
Five Rivers Delta Resource Center
Baldwin, Alabama, United States
Kokapen honetako media fitxategiak Ilustratutako zerrendak- Adina
- Zehaztu gabea
- Sexua
- Zehaztu gabea
Behaketaren xehetasunak
1st cycle, obsvd flying down Blakeley River, initially rel. close (300m?) and rel. low, then circling higher and continuing downriver. Approx. 2 min observation, in good light (looking east w/ sun behind me). Bold black M on upperwing striking, w/ outer primaries all black, inner primaries bright white, mantle gray; black collar on upperside of neck seen well. Significantly larger than nearby Forster's Terns, approx. size of nearby Ring-billed Gulls. From 1st cycle Bonaparte's Gull by size, bulkier build w/ less buoyant flight, larger bill, black collar, more bold black M contrasting w/ bright white inner primaries, and lack of black in trailing edge of (upper) wing. Sketch and field notes made at time of obs attached.
Informazio teknikoa
- Eredua
- iPod touch
- Lentea(k)
- iPod touch back camera 3.3mm f/2.4
- ISOa
- 32
- Distantzia fokala
- 3.3 mm
- Flasha
- Flash fired
- f-stop
- f/2.4
- Obturadorearen abiadura
- 1/263 sec
- Dimentsioak
- 1936 pixels x 2592 pixels
- Fitxategiaren tamaina originala
- 1.31 MB