of North America
by Jon L. Dunn
a tool to help you become an expert on the large gulls of North America.
challenging birds to identify. There are lots of species, with subtle
differences between them. Furthermore, each gull goes through several
transformations in appearance as it matures.
consider that summer plumage is different from winter plumage, and that
first-year, second-year, third-year, and sometimes fourth-year plumages
are all different, you end up with 6 to 8 different patterns for each
gull (plus one more, the juvenile plumage it wears only in its first season
many people are overwhelmed by gulls.
birders take particular delight in studying them, and you can also, when
you use this DVD to get them all straight. In this DVD, three of the
world's top gull watchers share their knowledge and experience: Jon L.
Dunn, Larry Rosche, and John Vanderpoel.
A close look at
bird footage distinguishes this DVD, with sharp, detailed closeups of
the gulls. You see the birds in flight and perched. Watch them in slow
motion. Study side-by-side comparisons of similar species.
get a chance to compare the fine points of wing pattern, tail pattern,
head shape, and so on. There is new information in this DVD that is
not found in any of the field guides.
About Jon L. Dunn:
is widely known for his expertise in bird identification. He was chief consultant for the National Geographic Society's Field
Guide to the Birds of North America.
It is Jon's
voice that guides the viewer through the DVD, clearly explaining the
intricacies of gull identification. He and Larry Rosche wrote the script.
Produced by Peregrine Video Productions
see The Small Gulls DVD, produced by
the same all-star team.
their wonderful new Hummingbirds of North America,
available both in DVD and VHS video.
may wish to look at some other DVDs as
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