BURNS—ON BROAD-WINGED HAWK. 281 
ers nearly always moult and renew in pair on opposite sides of 
wines, tail or body, sometimes one feather will fall a few days 
ahead of its counterpart, and it has usually been on the right 
side. 
Srconp Post NupriaL—lIn 1909 the female began moulting 
on April 11 and completed by August 31, the periods of heay- 
iest moulting of the body feathers occurred June 21-22, July 
10-12, 24, 30-31. The renewal was visible about May 4, and 
the new plumage entirely completed on Sept. 6. The sequence 
of the primaries was the same as the first moult except that 
the 10th did not fall until after the 2nd and previous to the Ist. 
IT was unable to solve the sequence of the secondaries, the 
moult and renewal taking place almost simultaneously about 
1-3, 7-9, and 4-6. Sequence of rectrices—central, outer, 3rd, 
2nd from central, next to central, next to outer ; the central and 
outer, 3rd and 2nd from central, next to central and next to 
outer moulting and renewing almost together. Alula—srd, 
2nd, Ist and 4th, May 28-Aug. 22. The medium scapulars are 
the first to moult. 
TuHirp Post NupriAr—The full, rich plumage of last fall 
bleached out wonderfully during the winter, and the perfect 
adult plumage was attained under the same conditions and in 
the same order as last year’s, except as follows: 
PRIMARY MOTI. SECONDARY MOUE'L, 1910 
May 15, left 9th; May 21, right 9th, June 8, left 5th: May 31, right 5th. 
May “8th; May “8th. June 20, © 2nd;Junels, “Ist. 
May 22, ~“ th: May 22, ~ ‘th. July 5 “© 6th; July 1, ~ 3rd. 
June 1. “ 6th; May 24, “ 6th. dnsiky 7 eae aiotky 3, Gan, 
June “5th: May 31, “ 5th. July 17, “ 4th; July 18, ~ 4th. 
June 5, “ 4th; June 8 “ 4th. analy 2, Slee aieihye, Bisel. 
June “8rd; Junel3. “ 3rd. 
June 22, ‘ 10th; June 22, “ 10th. 
June 26, ~ 2nd. 
July 22, “* ist; July14, “ Ist. 
The moult began about May 15, and was completed by Aug. 
13; the renewal was complete by September 1. The upper and 
lower tail coverts agreeing in time of renewal with correspond- 
ing rectrix. The under primary coverts began with the short- 
est, about the time the 3rd primary is dropped, and the longest 
