78 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 134 
Family TurpipaE: Thrushes 
TURDUS ALBICOLLIS COIBENSIS Eisenmann: White-throated Robin, 
Zorzal Gargantiblanco 
Turdus assimilis coibensis EISENMANN, Auk, vol. 67, No. 3, July 1950, p. 365. 
(Coiba Island, Panama.) 
The white-throated robin is the most common bird in the forest 
undergrowth, ranging into the intermediate branches of the trees, but 
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Fic. 10—White-throated Robin, Zorzal Gargantiblanco. 
seldom going higher. They were encountered from the borders of 
the mangroves inland, but always in forest cover. One was takenon 
Isla Rancheria February 4. Sometimes, when I called with the usual 
“squeaking” technique, as many as a dozen came flying into the 
branches about me, where they remained motionless until they 
detected some movement, when they flew to some denser cover. 
Their flight is direct and rapid. When at all alarmed they remain 
closely hidden among leaves, more often in the lower undergrowth 
than in higher cover. It was interesting to find them common in these 
