Bioacoustics of Cacomantis addendus

Diagnosis: main song of one type or blended with a second ‘where’s the tea’ vocalization, elements of the main song long and flattened, resembling those of blandus from the Admiralty Islands , but still longer and slower paced ( Fig. 2 ); basic morph of Solomons morphotype (see 3.2.2.(5) above); body medium-sized and tail proportionally long: wing c. 113–123 mm , tail/wing ratio 1.09–1.15 ( Table 2 ); barred females with dorsa dully barred black on dark cinnamon, and ventral white heavily barred black and pervasively washed cinnamon; juveniles dark in tone and coarsely mottled and barred black on tawny-cinnamon, extending to very broad rufous barring in outer rectrices. Element length, slow song pace and chimeric character of the main song, where main song and ‘brain-fever’ call run into each other, are unique and render the Solomon population bioacoustically distinct. So does the pervasive rufous wash over the ventrum in barred-morph females and over dorsum and through outer rectrices in juveniles . Except for Rothschild & Hartert (1901) , C. addendus has, until now, been treated as a subspecies of variolosus by all reviewers since Hartert (1925) .