This juvenile Red-necked Stint (Calidris
ruficollis) was photographed at St. Paul Island, Alaska
on August 20, 1992 by Paul Lehman. I feel this bird's juvenal
plumage is towards the bright extreme and extremely fresh, as
evidenced by the still-growing tertials (2nd-uppermost is the
longest tertial, yet here it is still shorter than the uppermost
tertial). Note especially the unusually dark ear coverts, the
interrupted supercilium (much more pronounced on this individual
than average for RNST), and the apparent lack of pale sides to
the crown, such that the rear supercilium is sharply demarcated
against the dark lateral crown:
For comparison, here are three images of a RNST-like presumed
SESA from Texas:
