P. DeBenedictis 1964 155 Feb 21 Academy Bay, Isla Santa Cruz, Galapagos. Looking into the trees, about every 3 or 4th bird large bird would be this species. In addition to the "pee- cheer-wee" song, I heard a "churr churr churr churr" song and a "churr wee" (the phrase repeated several times) song from the species. I saw only one Cactospiza, a singing bird working far up in a tree, without foot moving. The song was a deep rough "chörk chörk chörk chörk chörk" sometimes followed by a soft descending "churrssss." The bird forayed between 15 to 30 ft up in the large branches of trees covered with lichens. Spent a long time chasing Camarhynchus songs, all of which proved to be C. parvulus. I heard fast songs of chee and rough, hoarse two-syllable [syllables] "cheewi cheewi cheewi", and found a song of G. fuliginosa and G. scandens to be quite similar to this. The single paired syllable may be clear or hoarse sounding, and varies considerably in pitch, approaching Certhidea on one hand and G. fulva on the other. The only C. poioctictus I saw was not singing; it was low in some bushes and appeared much larger than the parvulus. The bill was deep and rounded, D-shaped in stead of the J shape of Platyptiga which it most resembled. Much of the size difference was from the extensive feathers erect it showed. Certhidea proved to be a great problem for high up it was present in great #s and certainly