characteristic russet color; auriculars pronounced; juvenal cervicals present 

 to anterior border of cervical apteria; juvenal restrices average 45 mm. long; 

 juvenal plumage complete on sternal region and femoral tract; crural and 

 pedal tracts with sheathed juvenal feathers throughout (see Plate 2, Figure /). 



The following descriptions are based on notes made from captive birds and 

 deal primarily with postjuvenal molt of wing. 



Forty-one days. Male. Lengths of first-winter primaries 1-2, 77 and 32 

 mm.; first-winter primary number 3 visible in flesh; juvenal primaries 4-8 

 completely grown; primaries 9-10, 64 and 36 mm. long; juvenal pinnae 

 slightly longer than other cervicals. Female. Primaries in same stage of 

 replacement as in male; first-winter primaries 1-2, 71 and 45 mm. long; 

 juvenal primaries 9-10, 52 and 39 mm. long; both specimens with plumage of 

 head slightly advanced over that of 29-day-old birds, but natal down still 

 evident; no postjuvenal molt on body (see Plate 3, Figure b). 



Forty-eight days. Male. First-winter primaries 1-4, 87, 73, 62, 20 mm. 

 long; juvenal primaries 5-10, 89, 96, 109, 115, 86, 62 mm. long; first-winter 

 secondary number 3, 29 mm. long; other secondaries juvenal. Female. Molt 

 of primaries same as in male. Lengths of primaries 82, 93, 57, 17, 113, 115, 

 124, 128, 86, 65 mm.; molt of secondaries same as in male; secondary number 3, 

 32 mm. long ( see Plate 3, Figure c ) . 



Fifty-five days. Female. First-winter primaries 1-5, 97, 97, 78, 60, 

 l5 mm. long and all growing; juvenal primaries 6-10, 92, 108, 122, 102, 70 mm. 

 long; 9-10 growing; first-winter secondaries 3-4, 52 and 37 mm. long; all other 

 secondaries juvenal and grown (see Plate 3, Figure d). 



Sixty days. Male. First-winter primaries 1-5, 96, 108, 108, 88, 52 mm. 

 long; number 6 missing; juvenal primaries 7-10, 115, 132, 113, 87 mm. long; 

 first-winter secondaries 3-5, 86, 64, 20 mm. long; greater secondary coverts 

 1-8 of first-winter plumage. Female. Molt of primaries same as in male. 

 Primaries 93, 97, 92, 77, 45, 0, 100, 120, 100, 83 mm. long; primary coverts 

 1-5 replaced; first-winter secondaries 3-5, 75, 55, 15 mm. long; greater 

 secondary coverts 1-7 of first-winter plumage. 



Sixty-seven days. Female. First- winter primaries 1-6, 98, 102, 110, 112, 

 87, 44 mm. long; juvenal primaries 7-10, 100, 121, 128, 98 mm. long; 9-10 

 growing; first-winter secondaries 3-6, 82, 48, 38, 10 mm. long and growing. 



Seventy-five days. Male. First-winter primaries 1-7, 96, 102, 120, 136, 

 110, 96, 20 mm. long; juvenal primaries 8-10, 110, 146, 116 mm. long; 9 and 

 10 growing. 



Eighty-two days. Male. First-winter primaries 1-8, 105, 124, 128, 140, 

 165, 160, 110, 30 mm. long; juvenal primaries 9-10, 152 and 125 mm. long; 

 secondary 1 juvenal; 2-10 first-winter and nearly grown. Female. First- 

 winter primaries 1-7, 100, 105, 111, 121, 143, 128, 67 mm. long; 8 missing; 

 juvenal primaries 9-10, 137 and 115 mm. long and fully grown; secondary 1 

 juvenal; number 2 first-winter and 38 mm. long; 3-4 first-winter and grown; 

 5-8 first-winter and 86, 78, 56, 26 mm. long and growing; other secondaries 

 juvenal (see Plate 3, Figure e). 



One hundred and twenty-six days. No. 30472 KU. Male. Primaries 105, 

 114, 125, 142, 170, 178, 176, 166, 152, 124 mm. long; 1-8 first-winter, 9-10 

 juvenal; only number 8 growing; secondaries all replaced and 88, 102, 101, 

 101, 99, 99, 96, 96, 94, 94, 92, 91, 88 mm. long; all other tracts in complete 

 first-winter plumage but with growing feathers throughout. 



[34] 



