Australian Birds in the Collection of the Linnean Society. 191 
2. Javanica. Hir.cærulescenti-nigra, subtus albida, fasciá lata 
frontali genis guld pectoreque ferrugineis, remigibus caudáque 
forficatá fusco-nigris, rectricibus lateralibus albo-notatis. 
Remiges subtus rectricesque inferiores pallidé fuscæ. Rectrices 
externæ fasciá albâ obliquá, cæteræ laterales maculá albá 
subrotundata, in medio pogonii interni notatæ ; duæ me- 
diz sine nota. Longitudo corporis, 54; ale ad remigem 
primam, 442; rostri ad frontem, 1, ad rictum, 1; rectricis 
externæ, 3-2, mediæ, 132, ; tarsi, =. 
Hirundo Javanica. Sparm. Mus. Carls. iv. t. 100. 
Hirondelle Orientale. Temm. Pl. Col. 83. f. 2. 
We have been led into a more detailed description of this 
bird than we usually give to an already described species, in 
order to point out the differences of its characters from those of 
our European Hir. rustica, with which it has been generally 
confounded. The chief distinction is in its inferior size; in the 
side-feathers of the tail being shorter, and at the same time less. 
gracile; in the frontal band being wider, and in the ferruginous 
colour extending over the breast, in place of the broad black 
band which characterizes the European species. Our New Hol- 
land specimens accord accurately with the figures and descrip- 
tions of this species given by MM. Sparmann and Temminck 
from Javanese specimens. "The migratory habits of these birds 
account for their wide dispersion. 
In Mr. Caley's MSS. we find the ee observations on 
these birds. ‘The resting-places of these Swallows are on the 
dead boughs of large trees, where I have seen several of them 
gatheréd together, in the same manner as European Swallows, on 
the roof of a house. I apprehend, however, that itis when their 
young have taken to flight that this occurs." " 
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