During migration, nearly all Swainson's hawks funnel through which Central American land bridge?
Answer
Isthmus of Panama
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During migration, nearly all Swainson's hawks funnel through which Central American land bridge?
Answer
Isthmus of Panama
Sardine run shoals off South Africa are often more than how many kilometers long?
Answer
7 km
U.S. Navy sonar linked diel vertical migration to what ocean sonar feature?
Answer
deep scattering layer
Male northern elephant seals migrate to feeding grounds along which underwater margin?
Answer
continental shelf
Which shorebird has a rufa subspecies that migrates between the Arctic and Tierra del Fuego?
Answer
red knot
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U.S. Navy sonar linked diel vertical migration to what ocean sonar feature?
Answer
deep scattering layer
Male northern elephant seals migrate to feeding grounds along which underwater margin?
Answer
continental shelf
What term describes fish migrations that take place entirely within fresh water?
Answer
potamodromous
Porcupine caribou migrate to calving grounds on the coastal plain of which sea?
Answer
Beaufort Sea
In terms of biomass, what is the world's largest synchronous migration?
Answer
diel vertical migration
The famous red knot banded B95 is better known by what nickname?
Answer
Moonbird