Mr. R. Swinhoe on Formosan Ornithology. 305 
recognizable by its white head. It has a short flitting flight, 
and frequently springs into the air some twenty or thirty feet, 
uttering its well-marked notes, tee-tee-teup-teup. In June 1857, 
when circumnavigating Formosa in H.M.S. ‘ Inflexible/ I first 
made the acquaintance of this species at Sawo, and afterwards at 
Kelung. It was then its breeding-season, and the numbers that 
abounded about the long grass were uncommonly lively; but its 
very diminutive size and activity precluded my obtaining more 
than one specimen of it. This I described the same year, at a 
meeting of the North China Branch of the Asiatic Society, under 
the above name. In Tamsuy I found it very locally distributed, 
and much rarer than C. cursitans. It was only after great 
difficulty that, through the aid of my constable, I was enabled to 
add another example to my collection, and the high and remote 
localities it inhabited prevented my obtaining any facts as to its 
nesting or other habits. I think I am right in laying down its 
habitat in Formosa as restricted to the hills on the eastern and 
northern portion of the island, Tamsuy being probably its most 
southerly range on the western side. 
The feathers of the tail of this species broaden to their ends, and 
are graduated, the external one being *46 in. shorter than the cen¬ 
tral. The first quill of the wing is very short, the third and fourth 
being nearly equal and longest. Both our species of this genus 
have twelve feathers in the tail, and so approximate to the Salt - 
caries rather than to theDrymcecee and Primes, which they resemble 
in many respects. 
67. Calamoherpe orientalis, Bp. Consp. p. 285. 
Salicaria turdina orientalis, Schleg. Faun. Japon. p. 50. 
Acrocephalus magnirostris, Swinhoe, Ibis, 1860, p. 51. 
This Eastern form of Reed-Thrush visits Formosa in summer, 
and may then be found in all wet localities abounding in tall 
reeds. It has a most powerful and polyglot voice, and delights 
all day, and often greater part of the night, in making itself 
heard. I have traced it in China as far north as Shanghai; and 
it also occurs in Japan. In summer it seeks more southerly 
latitudes. 
VOL. V. 
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