finally they also abandoned the nest A\hilst still incomplete ; the next season, however, 

 it was finished, probably by the original projectors, and the parent birds safely brought 

 up their young." 



It has also been found by Anchieta at Cacouda in Beuguela, and is said to remain 

 there throughout the year. 



The migrations of the present species are certainly diilicult to und(>rstaiid ; and 

 Mr. J. H. Gurney has given the following note on the specimen obtained by Mr. Awes 

 at Potchefstroom in March : — 



" These were perliaps arriving in Transvaal for the southern winter (see Mr. Avres's 

 note. Ibis, 1879, p. 291). The specimens which I have received from Transvaal were 

 obtained in May, July, August, and October, which scarcely accords with the experience 

 of the late Mr. Andersson, Avho, in his Damara-Land notes (p. 52), speaks of havinr^ seen 

 them on the Okavango river ' as early as the 1st of September,' and of their arrival in 

 Damara Land ' about November,' and of their nesting in that country in December. 

 This difference of habit as observed in S.E. and S.W. Africa at about the same latitude 

 is, I think, remarkable." 



The descriptions are taken from specimens procured by Mr. Surtees in the Cape 

 Colony and noAv in the British Museum, and the figures are drawn from examples in 

 the Shellev collection. 



2 It 



