W. E. OGILVIE-GEANT — AYES. 377 



[The Black Bush-Chat was seen near Entebbe and during the march to Ruwenzori. 

 It was plentiful on the plains all round the mountains, especially at the south eud, but 

 was never found above 5000 ft. — R. B. IF] 



Family TlMELIl D .E. 

 Crateropus kirki Sharpe. 



Crateropus jardinei kirki Reich. Vog. Afr. iii. p. 659 (1905). 

 Crateropus jardinei hypostictus Cab. & Reich. ; Reich, t. c. p. 6(30. 



a, b. 2 . 100 miles W. of Entebbe, 4100 ft., 4th Dec. [Nos. 25, 20. R E. I).] 



c, d. 2 et ? imm. Mokia, S.E. Ruwenzori, 3400 ft., 24th & 28th April. [Nos. 

 234, 249. R. E. 1).] 



e-l. 6 2 et ? imm. Mokia, S.E. Ruwenzori, 3400 ft., 2nd-31st May. [Nos. 362, 

 399. 22. E. I). ; 1495, 1496, 1559. I). C. ; 2314, 2318. G. L.] 



Adult. Iris yellow ; bill and feet black. 



Immature. Iris dark grey ; bill black ; feet brown. 



This species differs from C. jardinei Smith, from S. Africa, in being altogether some- 

 what smaller. Immature birds have the breast and belly pale brownish-white, 

 slightly washed with rufous on the sides, and exhibit a stage of plumage which 

 Dr. lleichenow has regarded as representing a separate subspecies, C. jardinei kirki. 

 His C.j. hypostictus is founded on the adult of this form, which must be known as 

 C. kirki, that name having priority. 



The type of C. kirki is an immature bird from Mazaro, near the mouth of the 

 Zambesi. 



In four adult males the wing-measurement varies from 3*75 to 4 inches. 



In five adult females the wing-measurement varies from 3'9 to 4T inches. 



In three immature females the wing-measurement is 3 - 85 inches. 



In typical C. jardinei the wing-measurement vanes from about 4'3 to 455 inches. 



Crateropus sharpei Reichenow. 



Crateropus melanops sharpei Reich. Vi>g. Afr. iii. p. 661 (1905). 

 Crateropus sharpii Jackson, Ibis, 1906, p. 541 [Toro]. 



a. 6 . 100 miles W. of Entebbe, 4000 ft., 7th Dec. [No. 32. R E. l>.] 



b, c. 2 . Mokia, S.E. Ruwenzori, 3400 ft., 25th & 30th April. [Nos. 2284. 2305. 

 G. L.] 



d, e. 6 . Mokia, S.E. Ruwenzori, 3400 ft., 26th & 28th May. [Nos. 380, 388. 

 22. E. I).] 



/' g. 6 2 ■ Mokia, S.E. Ruwenzori, 3400 ft., 14th & 15th June. [Nos. 456. R E. I). ■ 

 2396. G. L.] 



vol. xix.— part iv. No. 50. — March, 1910. 3 e 



