720 REPORT OF THE HARVARD AFRICAN EXPEDITION 
Hylia prasina (Cassin). White-eyebrowed Warbler 
Sylvia prasina Cassin, Proc. Acad. Nat. Sci. Philadelphia, vol. 7, p. 325, 1855: Moonda River, 
West Africa. 
A small warbler-like bird, dull olive with the top of the head browner than back; a prominent 
whitish-buff line through the eye, and a darker blackish to olive-brown one below it; chin whitish, 
rest of under parts olive gray. Portuguese Guinea to Congo. 
This greenish warbler with prominent eyestripe, is recorded from the coast 
region by Biittikofer (Schieffelinsville, Mt. Olive, Paynesville) and by Banner- 
man (Nana Kru), and we found it rather common in the interior as at Banga, 
Gbanga, Bomboma, Kolobanu. It frequents tree growth in open places and the 
edges of clearings, or may be found in thickets close to the ground on the borders 
of swamps. Although several times we saw pairs together in October, usually 
there were single birds at this season. Its usual call-note is a clear insect-like 
izee-hee repeated from time to time as the bird busily gleans among the leaves. 
It is in the main a species of the lower growth. 
ZOSTEROPIDAE White-eyed Warblers 
Zosterops senegalensis senegalensis Bonaparte 
Zosterops senegalensis Bonaparte, Conspec. Avium, vol. 1, p. 399, 1850: Senegal. 
Size of a small warbler, 4 inches; above olive green, front, chin, throat, and under tail-coverts 
sulphur yellow; a black line from bill below eye; eye-ring white; belly and sides gray tinged with 
yellow. 
This warbler was named by Buttikofer Z. demeryi for his collector in Liberia, 
Demery, based on a male from Robertport, and he also described a second 
species, Z. obsoleta, but both are regarded by Reichenow as synonyms of Z. 
senegalensis. We did not meet with the genus and it is doubtless rare in the 
republic, though in the drier, more open country to the northeast, Kemp 
(1905) found it very common about Bo in southeastern Sierra Leone. 
SYLVIIDAE Old World Warblers 
Sylvia borin (Boddaert). Garden Warbler 
Motacilla borin Boddaert, Tabl. Pl. Enlum., p. 35, 1783: France. 
Size of a small warbler, 5.5 inches; olive brown above, lores and line through eye dull whitish; 
below buffy whitish. Europe, wintering in Africa. 
This is the species usually called S. hortensis, a name now believed to refer 
to the Orphean Warbler. It is a winter visitor to Africa but apparently not very 
common in Liberia, perhaps only passing through to the southern parts of the 
continent. Buittikofer’s note of four taken in November near Robertport, still 
stands as the only record, but on the coast of Sierra Leone, two males were col- 
lected by Lowe on the 7th and 9th of March respectively (Bannerman, 1912), 
perhaps on their return migration. 
