Dr. Heuglin on some Birds of North-Eastern Africa. 09 
EXPLANATION OF PLATE II. 
Fig. 1. Egg of Pharomacrusparadiseus (p. 66). 
Fig. 2. Egg of Mimus gracilis (p. 60). 
Fig. 3. Egg of Polioptila albiloris (p. 61). 
Fig. 4. Egg of Pachyrhamphus aglaice (p. 64). 
Fig. 5. Egg of Icterus meritalis (p. 62). 
VI.— On new or little-known Birds of North-Eastern Africa. 
By Hofrath Theodor von Heuglin. (Part II.) 
[Continued from vol. ii. p. 414.] 
(Plate IS".) \\\ 
III. Tinnunculus alopex, Heuglin. (Plate <t^.) ( Falco 
alopex, Heugl. Uebers. der Vogel N.O. Afr. no. 51.) 
T. ferrugineus, subalaribus paulo pallidioribus, totus nigro stri- 
atus : caudse fasciis xviii-xx gequalibus, transversis, nigri- 
cantibus : remigibus fusco-nigris rufescente variegatis et 
basin versus interne albis: long, tota (foem. adultse) 1*1, 
alse 106, caudse 7*0, tarsi 1*9 poll, et lin. Gall. 
Hab. In prov. Galabat et locis vicinis. 
The general colour of this bird is fox-red, with well-defined 
blackish spots along the shafts of the feathers. The tail is some¬ 
what darker superiorly, with from eighteen to twenty narrow 
inconspicuous cross-bands on the shafts of the rectrices. The 
last of these cross-bands is not conspicuously broader and better 
defined than the next to it, and there is no lighter edge at the 
extremity of the tail. The lower coverts of the wings are scarcely 
lighter than the body, and each feather has a dark spot on the 
shaft; the inner barbs of the primaries and secondaries are 
whitish at the roots. The soft parts are greenish yellow; the 
bill and claws are bluish, the base of the lower bill yellowish, the 
iris brown. 
I discovered this bird, which is easily distinguished from all the 
other species of Tinnunculus , during my sporting excursions into 
the countries on the Upper Nile. With regard to its proportions, 
it is intermediate between F. tinnunculus and F. rupicoloides , but 
is more slender and has the wings longer than either of them. 
