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They nest among rocks and cliffs. The nests are made up of shells and debris or of dead vegetation. Clutch size is 3, on average, and the chicks hatch in 3 to 4 weeks. Young fledge in 27 to 30 days. Common tern chicks are able to fly by the time they are a month old but do not reach sexual maturity for 3 years.ommon terns are found from northern Canada south to the Caribbean Sea, as well as throughout Europe, Northern Asia, North Africa, and the Middle East. Some populations of common terns winter in the south to Peru and Argentina. (Ehrlich, et al., 1988; Malling Olsen and Larsson, 1995).
How long does a parakeet live? On average, parakeets live anywhere from five to 15 years, although it is common for the pets to survive upwards of 20 years with proper care. A number of dietary factors contribute to the life expectancy of parakeets.