Dr. Augusto Ruschi was a Brazilian naturalist who established and maintained a private biological museum in Santa Teresa, State of Espiritu Santo. Included among the exhibits at his museum was a large collection of hummingbirds native to Brazil, comprising perhaps fifty different species. Ruschi made trips to natural habitats, caught the birds, and brought them back to Santa Teresa. Greenewalt learned of this collection and made contact to arrange to photograph these species. On succeeding trips to Brazil, he always visited Santa Teresa and he supported Dr. Ruschi’s trips to expand the collection. All of this led to a nearly thirty-year exchange of correspondence, making trip arrangements, sharing information developed, etc. Ruschi was apparently a difficult personality, and Greenewalt often found himself defending and explaining.

Exchange of letters with Philippe Beraut attempting to arrange a visit to Polynesia together. Travel folders about Tahiti and surrounding islands. It doesn’t appear that this trip occurred.

Veilliard was a professor in the Department of Zoology at the University of Campinas in Brazil. Greenewalt became acquainted with him because of a shared interest in the bio-acoustics of bird song. They met regularly during Greenewalt’s many trips to Brazil.

Arrangements for short trips to California to view and photograph hummingbirds. Correspondence with hosts and hostesses about the birds and the trips. Visit to Tucker Bird Sanctuary. Contacts with Don Bleitz, who was writing a book on the Birds of the Western United States.

Contacts with associates in Cuba hoping to get photographs of hummingbirds native to Cuba. Correspondence with the manager at the du Pont estate during the period of expropriation. Study of flora and fauma on the estate.

List of hummingbird species found in Ecuador. Planning of a photographic expedition with local contacts in Ecuador. Arrangements for the installation of feeders, building of cages, and capture of specimens in the field. Use of Dr. Ruschi from Brazil to help capture birds in Ecuador. Exploration of an investment in building a guest house in a vacation area. Continued contacts and correspondence with Ecuadoran friends.

Trip to Jamaica in 1956 for photographic purposes. Correspondence with friends and contacts there discussing results and exploring possibilities for further work.

Planning to visit Peru with Dr. Ruschi to photograph hummingbirds found there. Ruschi made the trip but Greenewalt did not because of potential problems with local disease.

References to several visits to Venezuela to photograph hummingbirds, attend ornithological meetings, and visit with friends, particularly Wm. H. Phelps, Jr., an associate with AMNH. Dr. Ruschi also attended on some visits to collect birds for photographing.