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Baltic Gull (fuscus)


First Cycle

DESCRIPTION (not correct yet; needs revisions):

BALTIC GULL (20-24"; 49-50") fuscus

BILL COLOR: black; no pale base until summer variable; usually pale w/ black subterm area dark yellow w/ red or orange-red gon spot; pale tip
LEG COLOR: dull flesh flesh or yellowish-flesh pale to dark yellow
IRIS/ORB RING: dark dark or pale pale yellow; orb ring red
HEAD: rather pale, w/ dark mottling or streaking around eye, auriculars, and rear crown; young birds have solid blackish patch from front of eye to auriculars white w/ thin streaks over crown and aurs; darker streaks on nape and neck sides extensively streaked w/ fine lines over crown and face; thicker streaks on nape and neck sides to upper breast
UNDERPARTS: blackish mottling from lower nape and neck sides to breast sides and flanks; belly paler; undt covs spotted white w/ extensive dark streaking or mottling on breast sides and flanks white
blackish blackish A-spots evenly spaced except 9-10 closer; all are smaller than eye
(in flight):
blackish above and below blackish above and below medium mirror on P10, set back from tip; black band on P5; often dark mark on P4; gray area quite dark from below
(in flight):
blackish above and below w/ very narrow pale fringe dark above and below w/ pale fringe adult gray w/ broad white trailing edge about 1/2 bill length; strong contrast with gray area below
TERTIALS: very dark brown w/ crisp white edge; may have diffuse pale area near tip or small notches on sides dark gray w/ large pale marbled tips adult gray w/ large white crescent about 2/3 bill length
GREATER COVERTS: solid dark brown-black w/ obvious pale fringe and subterminal spot; more barred and spotted on inner feathers; appears as a dark bar in flight mottled adult gray and brown adult gray
LESSER & MED COVERTS: rather dark brown w/ pale edges, creating a scaled look (very bold in young birds); muddy later in winter adult gray w/ dark subterm anchors adult gray
SCAPULARS: similar to med,les covs adult gray w/ dark centers adult gray w/ little or no white crescent
BACK: similar to med,les covs adult gray w/ dark centers adult gray is nearly black, but may fade to have a brownish hue
RUMP: appears quite pale; white with some dark mottling white white
TAIL: large black band w/ pale fringe; all but inner retri- ces w/ extensive irreg pale barring at bases; outer- most webs white w/ dark bands near tip large black subterm band w/ extensive marbled base; outermost webs white white