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The Boreal Forest at Risk: A Progress Report

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PART 1: HOW MANY LANDBIRDS OF HOW MANY SPECIES ARE PRODUCED IN CANADA'S BOREAL FOREST?

1. c. How many landbirds are there in the boreal forest after breeding?

At the end of the breeding season, landbird numbers roughly double with the influx of juveniles into the population. Boreal data from the Monitoring Avian Productivity and Survival program (MAPS), which come mostly from Alaska, support this estimate. Based on a doubling of population and the estimates shown in Table 1, we can conclude that there are about three to five billion landbirds in Canada's boreal forest at the end of the breeding season.

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