HOMES OF TOUCANS 



205 



FIG. 59. HEEL-PAD OF SEVENTEEN-DAY-OLD ARACARI TOUCAN 

 a. Side view of pad of left leg. 6. Bottom view of left pad. c. Bottom view of right pad. 



of the bod}' feathers were bluish with the exception of those 

 of the under parts. At a point half way down the neck, the 

 feather tract bifurcated, one of these pectoral branches end- 

 ing beneath the wing and the other continuing down the 

 inside of the thighs. I mention these because of their pale 

 yellow pigment, prophetic of the adult coloration. A hint of 

 red pigment was visible on the breast feathers, correspond- 

 ing, however, only to the half -concealed line of scarlet 

 which, in the full-grown birds, lies between the black and 

 yellow of the under parts. There was no trace in the nest- 

 ling of the very conspicuous scarlet belly band and the patch 

 of the same color on the lower back. These are characters 

 which have evidentl}^ been evolved rather recenth'. 



Ten primaries were well sprouted, the 1st much the 

 shortest, the 6th longest, altliough the 3rd, 4th, 5th and 6th 

 were of almost equal length (1st, 7 mm.; 6th, 18 mm.). 

 There were fourteen remaining flight feathers grading in 

 size from the outer secondary inward (outer, 14 mm.; inner, 

 the 24th, 2 mm.). The secondaries were uniformly stouter 

 than the primaries. The coverts were short, not projecting 



