June 2024 • Nebraskaland 37
9. Rangefi nder — Avian biologists
conduct several types of surveys, such
as point counts, and many require
knowing how far away a bird is at the
time of observation. A rangefi nder
off ers a quick and accurate estimate.
10. Sunscreen and hat — The fi eld season
for an avian biologist can include long
days in the sun. Applying sunscreen
allows biologists to stay out in the
fi eld as long as needed. In addition
to reducing sun glare, hats also
serve as a protective barrier against
undesirable droppings from the sky,
which are increased hazards for avian
biologists.
11. Mist net — To study birds, sometimes
biologists need to catch them. Once
birds fl y into the net, biologists
extract them for measurements and
banding before release.
12. Calipers, scale and measuring
equipment — Once a bird is in hand,
biologists take precise measurements
of beaks, legs and other avian body
parts with the help of calipers. A
specialized ruler is used to measure
the length of the wing. Scales are used
to get a mass measurement, usually
while the bird is temporarily placed in
a cloth bag.
13. Bird bands — Bands are used to
help biologists track birds over
time and analyze their survival and
movements. Metal leg bands are
placed above the ankle joint and are
engraved with a unique number for
each individual that is read when the
bird is in hand. Small color bands are
used to help identify individuals from
a distance. Neck bands are used in a
similar way, often fi tted onto larger
waterfowl, such as geese and swans.
14. Neck collar transmitter and backpack
transmitter — GPS transmitters
are helpful for tracking locations of
birds as they forage, raise young and
migrate. The obtained GPS data can
inform how and when birds move
and what habitats are important.
Transmitters are attached in various
ways depending on the size and life
history of each species.
Elsa Forsberg is a wildlife biologist with the
Nebraska Game and Parks Commission.
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ALL PHOTOS BY JEFF KURRUS, NEBRASKALAND
