_Characters._--Adult male: Resembles adult male of _E. t. monachum_, but larger; upper parts more grayish-blue; wings with outer edges bluish-gray and inner webbings grayish-white; central tail feathers with subterminal, roundish, black spots; two outermost tail feathers black tipped with broad, pale bluish-gray coloring; lores more bluish-gray and less black; ear-coverts pale bluish-gray; chin, throat, breast, abdomen, flanks, under wing, and under tail-coverts grayish-blue; bill and feet black; iris dark brown. Adult female: Resembles adult female of _E. t. monachum_, but larger; forehead slate-gray; crown brownish-gray, browner on nape; back chocolate-brown; rump rufous; upper tail-coverts more cinnamon; wing and tail brownish-black, outer margins of primaries edged with buff; outer margins of secondaries and upper wing-coverts except primary wing-coverts edged with rufous; central tail feathers like back but tipped with buff, other tail feathers more broadly tipped with buff; lores grayish-black; malar stripe to auriculars darker and more brownish-black with lighter shafts; underparts rufous, under wing paler and more buffy. Immature: Resembles adult female, but forehead grayish tinged with ochre; crown and neck brown becoming slightly more reddish on back and more burnt reddish-brown on rump; tail edged and tipped with buff; primaries tipped with whitish, secondaries broadly edged with buff, primary wing-coverts tipped with buffy-white; lores blackish; ear-coverts rufous with lighter shafts; tail feathers pointed while in adult more rounded. Younger birds resemble older ones, but plumage except wings and tail may be spotted or barred with buff and black with whitish margins. _Measurements._--Measurements are listed in table 34. _Specimens examined._--Total number, 46 (23 males, 23 females), from Caroline Islands, AMNH--Ponapé (Nov., Dec.). _Nesting._--Coultas (field notes) writes that the nest is cup-shaped, made of grasses and strands of hair fern, and placed at low elevations in small trees and bushes. He was told that two eggs are laid. He comments that the nesting season had just been completed in November and December (the time of his visit to Ponapé), because he noted juveniles being attended and fed by the adults. _Molt._--Most of the specimens taken by Coultas in November and December are in fresh plumage or in the final stages of molt, indicating that the molt was initiated possibly in September and would be completed possibly in January. This time of molt appears to be approximately one month later than the time of molt of _E. t. monachum_ of Palau. Probably the bird at the Palau Islands breeds slightly earlier in the year than the subspecies on Ponapé.