Autumn and Winter Breeding Records for the American Robin, Turdus migratorius
Keywords:American Robin, Turdus migratorius, autumn nesting, winter nesting, Manitoba, Missouri, West Virginia, Ohio, phenology
AbstractWe report autumn and winter breeding records for the American Robin (Turdus migratorius). We located a nest on the campus of the University of Columbia at Missouri, USA, active 12 to 15 October 1999. This late nesting record prompted us to consult the Cornell Lab of Ornithology’s Nest Record Program and Bird Studies Canada’s Project NestWatch. Of the 11 113 American Robin nest records in Cornell’s database, 15 were active in September and three were active later than September. Of the over 23 000 nest records available from Bird Studies Canada one was active in September and one in October. All four of the latest nests contained nestlings and were active on 3 October 1964 in Massachusetts, 13 October 1932 in Manitoba, 18 November 1964 in West Virginia, and 8 January 1966 in Ohio. Eight of the ten nests monitored until outcome could be determined fledged young successfully.
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