PETROCHELIDON FLUVICOLA
INDIAN CLIFF-SWALLOAF.
? Red-headed Sicalloic, Lath. Gen. Syn. ii. pt. 2, p. 57, pl. Ivi. (1783).
? Ilirundo erythrocephala, Gm. Syst. Nat. i. p. 1024 (1788, ex Lath.); Gray, Cat.
Fissir. Brit. JIus. p. 25 (1848).
Herse erythrocephala. Bp. Consp. i. p. 340 (1850).
Hirundoflumcola, Blyth, J. A. S. B. xxiv. p. 471 (1855, ex Jerd. AISS.); Jerd. B.
Ind. i. p. 161 (1862); Blyth, Ibis, 1860, p. 337; Blanf. Ibis, 1807, p. 402; Gray.
Hand-1. B. i. p. 70, no. 819 (1869): Jerd. Ibis, 1871, p. 352; Hayes Lloyd, Ibis,
1873, p. 400; Adam, Str. F. 1873, p. 370; Aitken, Str. F. 1875, p. 213 ; Butler,
t. c. p. 439; Davidson & AVenden, Str. F. 1878, vol. ii. p. 76; lluine, t. c. p. 97;
Ball, t. c. p. 202 ; llume, Str. F. 1879, p. 84; Butler, Cat. B. Siud &c. p. 13
(1879); id. Cat. B. S. Bomb. Pres. p. 14 (1880); A^idal, Str. F. 1880, p. 43 ;
Butler, t. c. p. 378; Davidson & AA'enden, Str. F. 1882, p. 293.
Lagenoplastes enipusa, Blyth, Ibis, 1806, p. 337 (ex Gould, AISS.).
Hirundo Jluminicola, Sclater, P. Z. S. 1807, p. 832.
Lagenoplastes jliivicola, Gould, B. Asia, i. pl. 33 (1868); Hume, Nests and Eggs of
Indian Birds, p. 80 (1873); id. Str. F. 1875, p. 452; Eairb. Str. F. 1870, p. 2 5 i ;
Butler, Str. F. 1877, p. 217.
Petrochelidon jluvicola, Sharpe, Cat. Birds in Brit. AIus. x. p. 200 (1885).
P . pilco ru £ o ; u ro p y g io fum o so -b ru u n co , iJum is b a s a lite r fu s c c s c c u tib u s ; g u ttu r e c t pi'icpcctore dis-
tin c te n ig ro strio la tis.
Hab. in p en in su la I n d ic t.
A d u lt male. G e n e ra l co lo u r above glossy b lu c -b la ck , m o ttle d u a th « liite s tre a k s where tlic bases to
th e feathei-s show t liro u g h ; le sse r w ing-cove rts lik e th e b a c k , th e rem a in d e r d u sk y bUckisli,
glossed w ith ste e l-g re e n e x te rn a lly ; rum p a u d u p p e r ta il-co v c rts d a rk sm o k y b rown, m o ttled
w ith blacki.sli bases to tlie fe a th e rs , m an y o f Avhicli a re glo ssed w ith b lu e ; u p p e r ta il-co v e rts
sm o k y b rown ; ta il-fe a th e rs b la ck ish w ith a s lig h t ste e l-g re en gloss ; crown o f h e ad d u ll b riek -
r c d with b la ck ish sh a f t- lin e s ; lo re s wliite, sep a ra ted from th e foreh e ad by a lin e o f b la ck ; e ar-
cove rts d u sk y b row n , w ith n a rrow s tre a k s o f fulvous h row n ; cheeks, th ro a t, and b re a s t white,
b ro ad ly s tre ak ed w ith bla ck ish s h a f ts ; abdomen and u n d e r ta il-co v e rts p u r e w hite , w ith u.-vrrow
d u sk y sh a ft-lin e s ; sides o f b ody smoky b row n , s tre a k e d w ith b la ck isli sh a f t- lin e s ; u n d e r w in g ,
coverts a n d axilla rie s also d a rk sm o k y b row n , w ith n a rrow sh a f t- lin e s o f d a rk e r b ro w n ; »piiUs
d u sk y below, p a le r a lo n g th e in n e r web. T o ta l le n g th -i o inche s, c u lm cn 0 '2 5 , win g 4 (5,
t a il l - r o , ta rsu s 0 '4 .
T h e re is s c a rc e ly an y d ifference in th e colour o f tb e sexes when ad u lt. T h e female is a little