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Glossary
Culmen: a ridge along the upper bill of a bird, from the tip of the bill to the forehead.
El Niño: a natural phenomenon that happens every 4 to 12 years, and lasts for several months, when upwelling of cold, nutrient-rich water does not occur. This causes the warming of ocean surface water off the western coast of South America and causes die-offs of plankton and fish. It also affects Pacific jet stream winds, altering storm tracks and creating unusual weather patterns in various parts of the world.
Endemic: a species or taxonomic group that is only found in one particular country or geographic area.
Monogamous: having only one mate during a breeding season, or throughout the breeding life of a pair.
Translocation: the movement of a species, by people, from one area to another.
Kleindorfer, S. (2007) Nesting success in Darwin's small tree finch, Camarhynchus parvulus: evidence of female preference for older males and more concealed nests. Animal Behaviour, 74: 795 - 804.