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The Nature of Things

A blog about nature and the environment

A robin family


So maybe I spoke too soon in regards to the robin’s nest near our porch. Given the cracked egg I found last month on our driveway and last year’s failed attempt by robins to raise a family in the same tree, I figured this year would be more of the same.

But I was wrong. Three eggs in the nest hatched earlier this week, maybe Tuesday, and mom seems to have become used to our comings and goings by the tree.  However, it’s still not clear sailing from this point on. Check out this math from the Cornell Lab of Ornithology.

An American Robin can produce three successful broods in one year. On average, though, only 40 percent of nests successfully produce young. Only 25 percent of those fledged young survive to November. From that point on, about half of the robins alive in any year will make it to the next. Despite the fact that a lucky robin can live to be 14 years old, the entire population turns over on average every six years.

This entry was posted on Friday, May 7th, 2010 at 11:18 am by Mike Risinit. You can follow any responses to this entry through the RSS 2.0 feed.
Category: American robin