154 Mr. J. H. Gurney on additional Species of Birds 



yellowish green ; gape green ; tarsi and feet dull dark green on 

 the inner surfaces_, black on the outer. 



These Grebes are common in the lagoons, and are occasionally 

 found in the rocky streams inland ; they are almost always in 

 pairs, and appear to be somewhat pugnacious and fond of chasing 

 each other about. The stomachs of three which I shot all con- 

 tained insects, but no signs of fish, although the waters were 

 swarming with them. 



[The specimens sent by Mr. Ayres do not appear in any respect 

 to differ from those found in Great Britain. — J. H. G.] 



186. QuERQUEDULA HOTTENTOTTA, Smith. Hotteutot Teal. 

 Male. Iris dark brown; bill, upper mandible black, except 



the sides and base, which are blue, under mandible bluish ; tarsi 

 and feet ash-colour. 



These birds occur singly, or at most in pairs. 



187. Phalacrocorax AFRiCANUS (Gmel.). Long-tailed Cor- 

 morant. 



Male. Iris scarlet ; upper mandible dark brown, except the 

 margins, which are brownish yellow, as is the under mandible 

 also ; tarsi and feet black. 



This species frequents the freshwater lagoons on the coast. Its 

 flight is rapid and strong. When in the water it swims extremely 

 low, scarcely any part of its back being then visible. Both in the 

 air and on the water it much resembles the Anhinga [Plotus 

 levaillantii) in appearance. It is a very superior diver, and feeds 

 entirely on fish : if disturbed, instead of diving, it generally seeks 

 safety on the wing. It is solitary in its habits, and, like the 

 Anhinga, is particularly fond of sunning itself with outstretched 

 wings on some clump of rushes. 



The following additional notes refer to species included in my 

 former lists. 



Falco biarmicus (Temm.). Latakoo Falcon. 



Male and female. Irides dark brown ; bill dark bluish ash- 

 colour in the centre, black at the tip, and yellowish at the base ; 

 cere and eyelids yellow; tarsi and feet yellow. The male weighed 

 1 lb. 4 oz., the female 1 lb. 12 oz. 



