SummaryOccasional observations were made during 1960–62 mainly around Quito and Guayaquil, to supplement the works of Chapman (1926) and Marchant (1958). Three species are mentioned for the first time from western Ecuador and one from the Amazonian side; 34 North American migrants were seen. Data are provided for several tropical species ranging up to the Sierra. The existence of a large mixed heronry on the Guayas is also mentione