IN THE NORWICH MUSEUM. 29 
and Africa. Three species are peculiar to the African 
continent, and three others are respectively limited to 
the Seychelles, to Mauritius, and to Madagascar, to- 
gether with three small adjacent islands. Of the 
remaining two species, one is Australian, and the 
other a native of the Celebes, and of some other 
islands in the Indian Ocean. The habits of the 
Kestrels generally appear to be very similar to those 
of our British species, which preys upon the smallest 
quadrupeds and reptiles, (giving the preference to 
mice and lizards,) and also on little birds, insects, and 
earth worms. 
Closely allied to the Kestrels are the two species 
of red-footed Hobby, which form the genus Zrythropus. 
Of these two races, the western species (Erythropus 
vespertinus) 1s only an occasional and very rare visitor 
to Great Britain, but is abundant in some parts of 
Southern Europe, of Western and Central Asia, and 
of the African Continent, where it extends its south- 
westerly migrations as far as Damara Land, in which 
country the late Mr. Andersson observed that it 
arrived every year at the commencement of the rainy 
season, and often in flocks of thousands of individuals, 
which chiefly feed during their sojourn in Damara 
Land on the white ants or /ermites that abound in 
that country. The eastern Red-footed Hobby (£27y- 
thropus amurensts) differs from the western bird in 
having the under wing coverts in the adult males pure 
white instead of dark slate colour, and also in the 
