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| | SDNHM Focus on Royal and Elegant Terns (Site not responding. Last check: 2007-10-07) |
 | | The only records of the Sandwich Tern in San Diego County, in 1980, 1982, 1985, and 1987, were of an individual that courted Elegant Terns in the colony at the works, and in 1995 another hybridized with an Elegant in the colony at Bolsa Chica. |
 | | The Elegant Tern follows a migration schedule sharply defined by the calendar: arrival in early March, a postbreeding influx in June, July, and August, and departure in October and November. |
 | | The Royal Tern, by contrast, does not have a strong seasonal pattern, being found along San Diego County's coast year round and being at least as numerous in winter as at other seasons. |
| www.sdnhm.org /research/birdatlas/focus/terns.html (1583 words) |
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