ML619601184

Âge

Non précisé

Sexe

Non précisé

Détails de l'observation

White bellied oystercatcher paired with a Black Oystercatcher. It looked reasonably good for an American oystercatcher, with a fairly wide white wing stripe and nice demarcation between black and white on the breast, but with a few black spots in the plumage. Scoring these birds on the Jehl scale always seems to end up at 29-32, so unsure how useful it is, but because it is the tradition: Uppertail coverts: about equally dark and white (1.5) Tail: Black (outer rectrices with some white to the base) (0.5) Black on chest fairly sharply demarcated from upper breast (3) Belly white (6) Undertail coverts nearly equally black and white (2) Thighs entirely white (4) Width of greater secondary coverts in folded wing: very wide, but madness to associate a measurement to it (3.5) Wing stripe broad and extending into outer secondaries (2) Underwing coverts mainly white (3) Axillars mainly white (3) Approximately 29-30 even with optimistic scoring. Andy came up with 28. I think this is a hybrid just from those black spots

Informations techniques

Modèle

Canon EOS R7

Lentille

EF100-400mm f/4.5-5.6L IS II USM

ISO

160

Longueur focale

400 mm

Flash

Flash did not fire

f-stop

f/5.6

Vitesse d'obturation

1/1600 sec

Dimensions

2880 pixels x 1920 pixels

Taille originale du fichier

2.79 MB