Marshall, 1942 Basileuterus belli Loc Esmeraldas Mar 20 2 called when squeaked & gave owl calls in deep dark cloud forest. Squeak v Chlorospingus. The pair was working on the ground, I test & or stems & twigs close to gnd. ♂ 2129 skin taken about 1' above gnd. Not dense brush here. Looked & acted just like a wren. Mar 27 ♂ 2192 taken when heard double (seep) (to disting from Chlorospingus) in dense brush & trees at bottom cloud forest canyon. Apr 4 2257 skin ♂ attracted to me in dense humid type brush in open cloud forest by owl calls. Another with it, perhaps 2.