1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo A477 
“Calopelia puella brehmeri (Hartlaub). In seven examinations of crops and 
stomachs, seeds of various kinds were always found, we the only animal food con- 
sisted of 3 slugs, eaten by two of the doves. 
“Streptopelia semitorquata (Riuppell). This large ieee: which often feeds 
on the ground, takes little else than vegetable food: seeds, starchy plant material, 
with fruits occasionally, while one bird had been catching winged termites in the air. 
In a single case some small, empty snail shells had been swallowed along with rice, 
probably to aid in grinding it in the gizzard. So we cannot say that the present 
species eats any mollusks. 
“Cercoccyx mechowt Cabanis. The typical parasitic cuckoos are remarkably 
specialized toward a diet of caterpillars, which were contained in 9 out of 10 stomachs 
of the present species. Other insects were found in only two stomachs, and once a 
small snail with hard, conic shell. 
““Ceuthmochares xreus intermedius Sharpe. The stomach contents of 14 in- 
dividuals showed that they had devoured slightly more Orthoptera than caterpillars, 
and that insects of at least three other orders were eaten. Nine stomachs disclosed 
caterpillars, often of large size, but totalling only 13 specimens. Of Orthoptera, often 
large, green forms, there were 19, also in nine stomachs. Six of the cuckoos had eaten 
beetles; three, Hemiptera; and one a couple of large leaf-hoppers. <A single slug 
had also been eaten. 
“Centropus leucogaster neumannt Alexander. The coucals are much less fond 
of caterpillars than are the other cuckoos. In eight stomachs of this species there were 
only 2 caterpillars, other insects forming the bulk of the food, and being found in 
every case. One of the birds had eaten, in addition to insects, a frog, 3 spiders, and 
5 snails. One of the snails had a thin but brittle shell, the others were helixarions, 
with softer shells. This species of coucal haunts only the densest thickets in the forest 
country. 
“Centropus ansellt Sharpe. is the stomach of a single bird, I found erasshoppers 
and crickets, larve of wasps, a caterpillar, some snails onshably helixarions, with 
their soft shells torn off), and a few slugs. Here again we are dealing with a bird of 
the forest country, living close to the ground. 
“Centropus monachus occidentalis Neumann. Three stomachs we examined con- 
tained only grasshoppers and beetles. Schweinfurth,! however, credited this coucal 
with eating large land-snails of the genus Limicolaria, ingesting the shells as well. 
‘“Turacus schiittt emint Reichenow. The turacoes are well known as fruit-eaters, 
and some of the species occasionally add tender leaves to their diet. Of eleven 
stomachs of this common green forest turaco, only one failed to disclose fruit of some 
sort, and it held some other green vegetable material. One of the birds had added 
to its meal no less than 17 snails, mostly small. Yet these birds generally keep well up 
in the boughs of the trees. 
“Turacus leucolophus (Hartlaub). All but one of the seven stomachs studied 
held berries or other fruits. The one exception had a fair-sized snail, swallowed with 
pieces of the shell. In addition to fruit, one of the birds had also eaten a small spheri- 
cal flower-head. This turaco frequents the forest galleries in the northeastern savan- 
nas of Africa, 
“Halcyon albiventris orientalis Peters. From two stomachs we took a mantis, 
a dragon-fly, a grasshopper, a millipede, and a small snail. 
11874, ‘Heart of Africa,’ I, p. 347. 
