Contents of Vol. XX. — 1920-21. 



Spice-Bush {Helicia Youyi^iana), where Northern Olive Thick 



heads build 

 Nest (in situ) of White-throated Thickhead [Pachycephala 



pectoralis) 

 Nest of Cat-Bird [Aihtrcedus viridis) 

 Rifle-Bird's Nest 

 Bathing place of Rifle-Birds 

 Nest of the Scrub-Robin (Dryniodes brunneupygins) 



plate xxviii 



plate xxix 

 plate XXX 



plate xxxi 

 plate xxxii 

 plate xxxiii 



