[1][2] Camargo started working with Dr. Olivério Pinto, taking the administration of the bird section of the museum after his retirement.
From 1966 to 1979, he was substitute director of the museum, until retiring in 1980, but continued working as the curator of the bird section until 2001.
[1] The bulk of his work was with Brazilian birds diversity, going to field to collect specimens for the museum in various biomes of the country and publishing the results of his observations.
[4] He also worked in the fish section of the museum and during the 1950s he studied spiders, even naming three new Brazilian species: Parawixia inopinata Camargo, 1951, Wagneriana gavensis (Camargo, 1951) and Tetragnatha soaresi, which he synonymized as junior synonym of T. longidens Mello-Leitão, 1945, in 1953.
[1] In recognition of his work in ornithology, the hummingbird Phaethornis ochraceiventris camargoi Grantsau, 1988 and the furnarid Heliobletus contaminatus camargoi Silva & Stotz, 1992 were named after him.