321 
from the Colony of Natal. 
to me from Port Natal by my esteemed and indefatigable corre¬ 
spondent, Mr. Thomas Ayres. 
In identifying many of the smaller species in the following 
list, I have had recourse to the able and most obliging assistance 
of my kind friend, Dr. G. Hartlaub of Bremen, which I have great 
pleasure in here acknowledging. 
The species now enumerated, which have not been included 
in my previous lists of birds from Natal, are numbered consecu¬ 
tively to those in my last paper (see ‘Ibis/ 1862, p. 149), 
allowing for an error which is there referred to, by which one 
species was inadvertently twice enumerated, and to rectify which 
the concluding number of the last list is now repeated. The 
observations appended are communicated by Mr. Ayres, except¬ 
ing those in brackets, with my initials attached. 
187 (b). Bubo lacteus, Temrn. Sultan Owl. 
[A fine specimen of this large Owl (to which Lesson gave the 
expressive specific synonym of “ mltaneus") was sent from Natal 
in the collection of the birds of that colony recently exhibited 
at the International Exhibition. A specimen now living in the 
collection of the Zoological Society ^f London enables me to 
give the colour of the irides and cere—the former being very 
dark brown, the latter bluish grey. A remarkable feature of 
this Owl is its large rose-coloured upper eyelid, by which the eye 
is usually partially covered during the hours of daylight.— 
J. H. G.] 
188. Cypselus apus (Linn.). British Swift. 
Female. Iris dark brown; bill black; feet pale, tinged with 
black. 
These birds may be seen here, more or less, all the year round, 
but are more plentiful during the summer. They are generally 
in numbers; their flight is exceedingly rapid, and mostly at a 
considerable heighttheir food consists of small insects. 
[The specimen sent appears to be a young bird, and identical 
with those found in this country.—J. H. G.] 
189. Hirundo rustica, Linn. British House-Swallow. 
Male. Iris dark hazel; bill black ; tarsi and feet brown. 
These Swallows arrive in November in great numbers, and 
VOL. v. 
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