11 Campbell, Dichotomous Key. 



Wing 4.8 inches ; under tail coverts fawn like rest of under surface. 

 (Female has rufous eyebrow but lores whitish.) 



C yufiventris (Buff-bellied Shrike-Thrush). 



621. Breast dark : under tail coverts rich fawn . . . . . . 622 



Breast light : under tail coverts whitish. 



Pinarolestes parviiliis (Little Shrike-Thrush). 



622. Wing 4 inches ; tail 3.5 inches. C. hoiveri (Bower Shrike-Thrush). 

 Wing 3.6 inches ; tail 3 inches. 



Pinarolestes rufigaster (Rusty-breasted Shrike-Thrush). 



623. Tail shorter than or nearly as long as wing . . . . , . 624 

 Tail longer than wang and usually carried erect . . . . 747 



624. Total length more than 6.6 inches . . . . . . . . 625 



Total length less than 6.6 inches . . . . . . . . 639 



625. Shafts of tail feathers produced and spiny : throat white (male), 



rufous (female) or mottled (in youth). 



Orthoxyx. Log-ruxxers. 626 

 Tail feathers normal . . . . . . . . . . 627 



626. Length about 8 inches ; wing coverts tipped grey. 



0. spinicauda (Spine-tailed Log-runner). 

 Length 10 inches ; wing coverts blackish. 



0. spaldingi (Black-headed Log-runner). 



627. Length more than 7.5 inches ; back luiiform brown or rufous ; 



or spotted with black ; wing with white spots. 



CixcLOSOMA. Grouxd-Birds. 628 

 Plumage black and white, brown and white, or brown striated with 



black on back . . . . . . . . . . 633 



628. Back uniform colour . . . . . . . . . . 629 



Back spotted with black ; throat blue-black (male) or white (female). 



C. punctatum (Spotted Ground-Bird). 



629. Throat black . . . . . . . . . . . . 630 



Throat buff. C. cinnamomeum (Cinnamon Ground-Bird), female. 



630. Crown, upper back, and tail different from lower back . . . . 631 

 Back and centre tail feathers entirely one colour. 



C. cinnamomenm (Cinnamon Ground-Bird), male. 



631. Chest cinnamon or chestnut . . . . . . . . 632 



No chestnut on breast ; throat black (male) or grey (female). 



C. castanonotum (Chestnut-backed Ground-Bird). 



632. Under tail coverts mostly white, with dark centres ; chest chestnut ; 



wing 4 inches. 



C. castaneothorax (Chestnut-breasted Ground-Bird). 



Under tail coverts black with white edges ; chest cinnamon ; wing 



3.8 inches. C. marginal iim (Northern Ground-Bird). 



633. Total length q or 10 inches . . . . . . . . 634 



Total length 6.5 to 8.5 inches . . . . . . . . 635 



634. Back almost uniform ; breast and flanks with cross marks. (For 



male see No. 439.) 



Edoliisoma tennirostre (Jardine Caterpillar-eater), female. 



Head and back with black centre to each feather ; under surface 



uniform. Plectorhynchus lanceolatus (Striped Honey-eater). 



635. Plumage purely black and white (male) or brown and white (female) 636 



