R.K. Selander, 1952 Campylorhynchus rufinucha August 3 Cerro Guzman, 200 ft., 20 mi. W Veracruz, Veracruz, Mexico. Collected six including some juvenile. Iris of adult a redder color than in C. megaloptyerus. Iris of juveniles a pale blue. Beet and legs decidedly purplish, sometimes a slate color. In skining these birds, I noticed that they are noticeably more delicate than either C. brunnicephillus, C. joiosus, or C. megaloptyerus. The leg musculature is smaller and the skin is much less firmly attached to the body. These wrens are distributed rather evenly throughout the stands of forest. They are most frequently found in clearings where there is a canopy of tree branches over the trail. Seen to be associated with thorny trees for the most part. Frequent low trees - about 6-10 feet from the ground; never in high ports of the trees. Often found in large bushes. Very much less wary than C. megaloptyerus - will come to a squeak fairly well: not too frightened by sound of shot gun. Usually from two to five birds in a group. Adults and juvenile together, so apparently the nesting season is over for the most part. Often hear these wrens calling in dense, scrub vegetation in a stand of trees. The definitely like dense vegetation and stay fairly low at all times. Notes are a very "wren-like" "sha-cha-cha-cha" much run together and rather soft. Heard one give a song - "sha-reek-ee" or more like "sha-rink-ee" "sha-rinkee", located what