SUDAN BIRDS

fNo bright pink on lower back ... 5•< Lower back rosy pink; wing-coverts[_ and upper parts pale brown ... Mhodophoneus cruentus, 554.f Wings and their coverts black, or black< and white in adults ... ... 6L Wings more or less bright chestnut ... 8fBump not contrasting with themantle; sexes alike ... ... 7< Rump white or grey, contrasting withthe mantle; sexes generallyL distinguishable ... ... ... Dryoscopus gambensis, 553./Under parts cream colour Laniarius ferrugineus, 552.\ Under parts bright crimson ... ... Laniarius erythrogaster, 551.TBill longer and more slender ; outertail-feathers broadly tipped withwhite; sexes alike ... ... 9i Bill shorter and stouter; tail notbroadly tipped with white; sexesdiffering ... ... ... ... Antichromus minutus, 548.„ /Crown black ... ... ... ... Tchagra senegala, 546.\ Crown brown ... ... ... ... Tchagra australis, 547.Two proximal phalanges of the 3rdand 4th toes free and normal ... 11Two proximal phalanges of the 3rdand 4th toes united in a commonsheath; secondaries and coverts![_ spotted with pale yellow ... ... Nicator chloris, 555.11.'Bill very large, stout and stronglyhooked, not less than 0.4 inch deep;wing-coverts and quills tipped with-J yellow Malaconotus poliocephalus, 550.Bill moderate and less stronglyhooked; a black band on the sideof the head of the male Chlorophmeus sulfureopectus, 549.12.("Top of head not streaked 13I Top of head brown, with broad-; blackish shaft-stripes; tailfeathersnarrow and strongly{_ graduated ... ... ... ... Corvinella corvina, 565.13.f Black on the head extending downthe whole length of the neck and-i back 14Black on head never extending downL the neck 16ffBases of central tail-feathers black;j wing not more than 4 ins.... ... 15J( J Bases of tail-feathers white; wing(_ about 4.5 ins. ... Fiseus excubitorius, 563.f Upper tail-coverts of the same colouras the back, hinder half of neck and,- J crown Fiseus nubicus, 564.1 Rump and upper tail-coverts grey;I crown and hinder half of neck '^ black, or nearly so Fiseus collaris, 562.f Adults with some rufous on the upperparts 17,„ J No rufous on the upper parts in| adults; quills black, with someI white bases ; crown, hind neck and|^ upper back mostly grey ... ... 2062