Lian. 
40 Dwicnut, Moult of Quails and Grouse. 
Mus. No. 35471, March 22) shows considerable renewal about 
the forehead, sides of head, chin, and jugulum, and several Florida 
birds in Mr. Sennett’s collection show new growth in April and 
May. 
Colinus virginianus texanus (Zawr.). ‘TEXAN BOB-WHITE. 
The plumages and moults evidently correspond to those of 
virginianus. ‘Two males taken at Corpus Christi, ‘Texas (Amer. 
Mus. Nat. Hist., No. 55001, April 22, and No. 55002, April 24) 
both show new feathers growing about the chin and head anda 
number of specimens in the collection of Mr. George B. Sennett 
show a prenuptial moult, extending from March into May. The 
juvenal plumage is browner than in zrgenzanus. 
Colinus ridgwayi Avewster. Maskep Bos-wHiTe. 
The material examined is not sufficient to enable me to reach 
any positive conclusions. The ruddy breast and black throat are 
evidently assumed at the postjuvenal moult. 
Oreortyx pictus (Doug/.). MOUNTAIN PARTRIDGE. 
3 «© plumiferus (Gouw/¢). PLUMED PARTRIDGE, 
Ss ‘“ confinis Anthony. SAN PEDRO PARTRIDGE. 
The material I have examined is limited but conclusive, show- 
ing the different stages occurring as follows: 
Natal Down. — A broad stripe of rich chestnut runs from the 
forehead to the tail bordered on either side by narrow pale buff 
stripes, the sides and wings being mottled with dusky chestnut ; 
a dark line behind the eye. Below uniform yellowish white, palest 
on the chin and buff on the sides of the head. A specimen of fze- 
tus in my collection (No. 4947, Oregon, May 27) has the middle 
members of the remiges just developing with the tuft of natal] 
down at their apices. ‘The distal pairs are not inview. Another 
bird representing A/umiferus (No. 3897, 2, Fresno County, Cali- 
fornia, August 4) is more advanced though still a mere chick and 
retaining natal down on head and throat. 
Juvenal Plumage, acquired by a complete postnatal moult. 
