Red Knot Calidris Canutus Germany Adult Breeding Plumag

Adult Red Knot Calidris Canutus In Breeding Plumage In The Stocky, medium sized shorebird with relatively short bill and legs. combination of shape, overall color, and bill size usually distinctive. beautiful breeding plumage shows entirely salmon orange underparts and silvery wings with intricate patterning. nonbreeding is plain gray with pale underparts and a white eyebrow; juvenile similar but with scaly pattern on wings. usually shows dark barring. Description. 10.5" (27 cm). winter plumage lacks obvious marks. larger than most plain gray sandpipers; note stout, straight black bill, short neck, short legs. dowitchers and willet much longer billed. in breeding plumage, face and underparts washed with robin red. fall juveniles show scaly pattern on gray back.

Red Knot Calidris Canutus Germany Adult Breeding And Nonbr Plumages. red knots have 10 functional primaries, 14 15 secondaries (including 3 tertials), and 12 rectrices; calidrine sandpipers are diastataxic (see bostwick and brady 2002) indicating that a secondary has been lost evolutionarily between what we now term s4 and s5. appearance of breeding birds shows average geographic differences but these. The rufa red knot breeds in the central canadian arctic, from the islands of northern hudson bay to the foxe basin shorelines of prince charles and baffin islands, and west to victoria island. due to its vast size and remoteness, the full extent of the breeding range is not well known. however, new satellite tracking technology is producing. An adult red knot is the second largest calidris sandpiper, measuring 23–26 cm (9.1–10.2 in) long with a 47–53 cm (19–21 in) wingspan. the body shape is typical for the genus, with a small head and eyes, a short neck and a slightly tapering bill that is no longer than its head. [ 19 ]. General description. the red knot is a sturdy, medium sized shorebird with a short, straight bill and olive yellow legs. in breeding plumage, it is bright rufous below and mottled gray and black above. the adult in non breeding plumage is gray overall. the juvenile has white tipped feathers on its wings, giving the wings a scalloped look.