H4 
Sigmudus, Bp. 
Helmet ed Shrikes, 
1. Sigmodas scopifrons, Peters, 
Ref. Reicheuow. Voyel. Afrikas. Vul. 
2. Sigmodus retzii tricolor (iniy 
Ref. Reiohenow. Vogel. .Afrikas. Vol. 
d. 8igmodnsretzii graculimis Caban. 
Ref. Reichenow. Vogel. Afrikas, Vol. ! 
4. Sigmodus retzii intermedins Nnem. 
Ref. Reichenow. Vogel, .Afrikas, Vol. 
Crotestes. Cob. 
1. Urolestes aeqiuitoralis Keich. 
Ref. Shelley. Birds of Africa. Vol, I, 
Corrine/ta. Less. 
Giant Yettnif-bitted S/irikes. 
1. Corvinella corvina attinis. Heugl. 
Ref. Shelley. Birds of .Africa. Vol. I. 
Fisrns, Bp. 
Pied Ijong-toitexl Shrikes. 
1. Fiscos collaris humeralis Stanley. 
Ref. Reichenow, Vogel, Afrikas. Vol. 
2. Fiscus collaris uropygialis, Reichenow. 
Ref. Reichenow, Vogel, Afrikas, Vol. 
Uganda and East Africa 
II. 
I'ganda and East Africa 
11 . 
Ugaiula and East Africa 
II. 
East A f rica 
II. 
Uganda and East Africa 
1 
Uganda and East Africa 
Uganda and Plast Africa 
II. 
Uganda and Plast Africa 
II. 
