46 ELEONORA FALCON. 
one with the other. The only similarity between the 
two birds is that they are each unicolorous; but then 
the colour of one is chesnut; the other dark slate or 
lead-colour; while there are specific points of difference 
between them sufficiently clear. I have, however, amid 
the uncertainty which exists, thought it better to omit 
F. concolor, though I do so with reluctance, from the 
European list. 
The Eleonora Falcon is found in Sardinia, Greece, 
and Syria; and it occurs also in Africa. It seems to 
prefer plantations and shrubby woods for its residence. 
According to Prince Bonaparte it nests in July and 
August, in cavities covered with bushes among the rocky 
precipices near the sea. It lays three eggs, of a pale 
reddish colour, finely spotted, like the Hobby, with 
ferruginous brown. 
Nothing more seems to be known at present of its 
habits or food. M. Jaubert, -writing in the “Revue de 
Zoologie,” in 1854, says it occurs frequently in Sar- 
dinia, and he describes the bird. 
A fine adult male in the Norwich Museum, is in 
colour of a nearly uniform dark chesnut, rather lighter 
underneath. The quill feathers darker, nearly black 
above, shading off to a lighter colour below, and 
marked by indistinct elongated spots. The feathers of — 
the under parts are fringed with a reddish tint, more 
particularly the throat and under the cheeks, the thigh 
feathers and under tail coverts. The tail is round, six 
inches long, and the same colour as the rest of the 
body, but barred underneath with nine or ten rows of 
darker tints. Cere, tarsi, and feet are said to be 
greenish yellow; claws black. 
The female, which is labeled by M. Verreaux as in 
immature plumage, is so exactly like the Hobby, that — 
