Mr. R. Swinhoe on Formosan Ornithology. 251 



prescribed time of stay is as nearly a month as possible. The 

 small party that annually visit this wood appear to come from 

 the interior to recruit their strength and recover their feathers, 

 and then to pass southwards. In Hongkong and Macao I found 

 the same species as a summer resident only. In Formosa it oc- 

 curred as an abundant summer resident on the plains about 

 Taiwanfoo ; but both specimens I procured were females. Un- 

 fortunately, the only male I procured at Amoy was so shattered 

 that I threw it away, and I have feserved no note of it; but I 

 have adult females and immature birds from that locality, which 

 in most respects agree with those procured in Formosa. The 

 Formosan bird is, however, smaller, much paler, and less dis- 

 tinctly spotted, and may perhaps be ranked as a variety. 



5 , procured at Apes' Hill, in November. Length 93 in.; wing 

 7yt5 j tail 4^ . Throat with two large white spots. A large 

 spot of reddish white on each of the first three quills, occupying 

 both webs in all except the first quill. Head spotted with black. 

 A rufous collar extends from shoulder to shoulder. Wing- 

 coverts and breast marked with large spots of clear rufous buff. 

 Middle tail-feathers with nine bands of black. Tarse almost 

 entirely naked, except at the tibial joint. Trachea -^^ in. broad, 

 composed, near the lower larynx, of very thin close rings angu- 

 lated downwards ; the lower larynx not covered with muscle. The 

 sterno-tracheal muscles, on giving off, become large and fleshy, 

 and increase in bulk towards the coracoids. Heart ~ in. long by 

 ^. Liver, right lobe 1 in., left —- A mass of yellow fat covered 

 the belly. (Esophagus hard, -^ in. broad ; proventriculus granu- 

 lated, Y^ long, ovate, ~ at greatest diameter. Stomach 1 ^ in. 

 long, 1 broad, ^ deep, ovaie, and compressed ; its tendons large 

 and its sides hard and muscular ; epithelium thick and ochreous 

 brown, broadly and deeply furrowed with longitudinal rugae, 

 well distended with remains of Coleoptera (chiefly Cetonice) and 

 of nocturnal Lepidoptera. Ovary with numerous small eggs. 

 Oviduct thin and black, -— in. wide and li long, leading into the 

 cloaca, proving that the bird was a mature female. Cseca 1 ^ in. 

 from anus ; right one li long, left one \~, both terminating in 

 large black sacs, -^ at widest part, their stems being -^-^ long by 

 f'^ thick. Intestine 9| in. long, varying in thickness from J^ to -?-. 



