from the Colony of Natal. 321 



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, Temm. Sultan Owl. 



[A fine specimen of this large Owl (to which Lesson gave the 

 expressive specific synonym of " sultaneus ") 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 of 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 height ; their 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. Z 



