Winter finches invaded much of North America in the winter of 1997-'98 in record numbers!
It was a major "Superflight" of winter finches.
birders across the continent hope the season will bring an influx of finches from the
north, and that winter presented us with perhaps the most outstanding
finch year in recent history.
With the advent of the Internet, BirdSource, and
Geographic Information Systems (GIS) mapping technology we were, for the first time, able
to follow a winter finch irruption as it unfolded across North America. The North American
Winter Finch and Red-breasted Nuthatch Survey revealed many interesting pieces
of information. However, there are still more questions that you can help us answer. For
- Do irruptions occur as sudden influxes of
individuals or is it a gradual movement south?
- How does weather affect the speed and direction of
- Do peak numbers of species and locations change
over the winter?
- How long does the irruption last for each species?
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Revised: September 08, 1999.