Impressions of the Voices of Tropical Birds 167 



T. multistriatus, has the characteristic dry, woody, descending scale common 

 to many species. It strongly suggests in quality the spring 'rucking' of a 

 Nuthatch. It might be written ruk, ruk, nik, uk, uk, k, k, k beginmng 

 lazily, and gathering speed as it descends. All these birds put much effort 



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ANT-SHRIKE {Thavmophilus multistriatus) 



into their calls, and sing with head up and tail down. The latter moves 

 noticeably at each note and, as with the Trogons, we came to look for the 

 vibrating tail when hunting them. 



The many species have different notes, but most are readily recognizable 



