136 CALIFORNIA ACADEMY OF SCIENCES  [Proc. 41H Ser. 
those obtained during the first half of the month. Most of 
them are renewing from five to six innermost primaries and 
the greater and lesser wing-coverts. A number, also, are be- 
ginning to replace their inner secondaries.. Two are growing 
rectrices. The only other instances in the May series are the 
three forward birds of the 8th and 21st. 
A specimen taken on June 1 has outstripped in the moult 
three specimens taken on June 27. Its plumage is in fine 
condition with but few worn or growing feathers. The three 
tardy birds are abraded and bleached with feather renewal 
active. Of the old primaries, four outermost are left in one 
specimen, three in another, and three on the right wing and 
two on the left tn the remaining specimen. The rest of the 
June birds (in dates, scattered along between the 3rd and 
25th) further illustrate individual variability in the moult; 
some have lagged behind and others have pressed forward. 
Viewed as a whole, the rehabilitation is more advanced than in 
the May series. 
With the exception of one obtained on the 24th and another 
on the 26th, the birds secured in July were taken between the 
ist and 12th of the month. In general, they show progress in 
the moult, and there is about the same proportion of backward 
and forward individuals as in the preceding months. One has 
the plumage of the lower parts of the body much worn, par- 
ticularly on the anterior portions of the breast, where the 
feathers are frayed nearly to the shaft and badly faded. The 
fore-neck, upper parts, inner primaries, and some of the sec- 
ondaries and wing-coverts are in good condition. None of the 
specimens appear to be birds-of-the-year. 
Of the specimens taken during August, six were obtained on 
the 17th, eight on the 19th, and one each on the 27th and 30th. 
In one specimen, an old distal primary and numerous old dorsal 
feathers still resist the advance of the moult. Eight speci- 
mens have lost their worn feathers and are nearly in complete 
plumage. In each, the sheath persists in two or more rectrices 
and in the distal primary. Two other specimens are also in 
new dress, but feather renewal appears to be about over in 
them. The five remaining specimens show some wear and 
lesser replacement. 
