Aves. Passeres. Hirundo. 
daun- 12. H. casrulea , fubtiisalba, temporibus uropy- 
'^ica. gioque ferrugineis. MantiJJ'. pl. ait. p, 528. A£l, 
Stockh. 17 ^ 9 ' 
Hirundo alpeftris. Pallas it. II. p. 709. n. 19, 
Damirian Swallow. Latb. Jyn. II. 2. /^.570. ».13. 
Halitat in Sibiria? aJpibus , domejlica major , in ru- 
pibus elatis iA fpeluvcis montanis , rarius in ccdifi^ 
ciis reliBis nidum firuens maximum , hemijphari- 
cum , iA tuberculis limofis , nullo gramine admixta 
purijjinmm , canali ad aliquot pollices a nido extcn- 
fo pro aditu. 
Corpus fupra ex candeo chalybeum nitens , fubtus 
canum ; tempora ex ferrugineo rufa , colore pojie- 
rius coadunato ad nucham-^ remiges n/_ 
gricantes apicibus obtufis Jiria fujca : remige pri- 
ma longiore , re£frix utrinque extima reliquis duplo 
longior ; criffum cinerajcens , pennarum apicibus 
nigris. 
*tythro-29. H. atra, pennarum margine albo , fubtus al- 
'■^phala. ba , capite rubro. 
Red-headed Swallow. Lath. fyn.W. 2. p.c,q\ 
Habitat in India , trochili minoris magnitudine. 
Teftrices caudei fufccjcentes. 
''naiaf. 30. H. nigra , fubtus cinerea , uropygio exalbido, 
‘•bken- redlricibus margine rotundatis. 
Aoonalashka Swallow. Lath. fyn. 11. 2. p. ^'ji. 
Habitat in U naiafchca , 4-i pollices longa. 
*^dica. 31. H. fufca, fubtus exalbida, capitis maxima par- 
te rufa. 
Rufous headed Swallow. Lath. Jyn. II. 2,p. 5^1. 
«. 16. r. 5O. 
Habitat in India , 4. pollices longa. 
Teifrices alarum nonnulla margine alba ; remiges 
cauda longiores ; pedes atri, 
Mm % ni- 
