388 Mr. J. Whitehead on Birds 



progression. On the Aving^ and especially on reaeliing their 

 destination^ they make as much noise as possible; the loud 

 "kang-haw, ha-haw-how" may be heard at the distance of 

 nearly a mile, and echoes through the too often silent forests. 

 On skinning most species of Hornbills the loose way in 

 which the skin is attached to the flesh, especially on the breast 

 and neck, is very remarkable, and gives one the idea that 

 the bird may perhaps have the power of inflating itself during 

 flight. 



The whole of the plumage and the bare skin on the face 

 are thickly covered with a yellow oily powder (obtained from 

 the oil-gland), which comes off very easily and spoils the 

 look of the bird after skinning. 



Adult. Iris white ; bill dull scarlet ; feet vermilion. 



Juv. (not quite adult) . Iris hazel ; bill dull red ; feet reddish 

 brown. 



233. HvDRocoRAxsExMiGALEATUs (Tweedd.). (Grant, Ibis, 

 1897, p. 245.) 



This Horubill is closely allied to the preceding species, and 

 its habits are similar. That no member of this genus has 

 been obtained in Mindoro is one of the remarkable facts in 

 the distribution of Philippine birds. 



Ad. Iris pale yellow ; basal half of bill bright lake-red, 

 rest of bill yellowish white ; feet dull brick-red. 



Jr. (1st plumage). Iris brown ; bill black ; feet brownish 

 red . 



234. Penelopides Manilla (Bodd.). (Grant, Ibis, 1894, 

 pp. 409, 520.) 



The small Philippine Hornbills are always one of the 

 ornithological features of the various Philippine Islands. 

 They are often remarkably distinct from one another, con- 

 sidering the small sea-space that divides the diiferent species. 



The note and habits of the whole genus are similar. They 

 frequent old forest, but are very partial to overgrown 

 clearings, where they may be met with in small flocks. In 

 North Luzon I once met with a flock of this species on the 

 wing : they were crossing a wide plain in the great heat of 



