What is the average lifespan for many migratory North American thrushes in the wild?
Answer
One to two years
The statistics regarding the general population of thrushes, particularly those species known to migrate across North America, indicate a surprisingly brief existence on average. This low numerical average is a direct reflection of the intense and numerous risks inherent in their annual cycles, especially during the demanding migration periods. The vast majority of these birds succumb to these pressures before reaching maturity or completing even a single round trip. This short average life contrasts sharply with the maximum potential longevity recorded for certain individuals, highlighting that survival past the first year grants a significant statistical advantage.
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