To reach the little to no impact conclusion, the industry assessors relied on limited visual surveys conducted only during daytime and in good weather to conclude that
migrating birds fly at a height sufficient to avoid the turbines» blades.
Anyone watching the autumn sky knows that
migrating birds fly in a V formation, but scientists have long debated why.
Many
migrating birds fly at night — often, all night — to cut the risk of being seen by predators and to avoid overheating under the hot sun.
So ornithologist Thomas Alerstam of Lund University in Sweden and colleagues used the radar on a Canadian icebreaker in the Northwest Passage to measure the direction of
migrating birds flying past.
«Novel technology reveals aerodynamics of
migrating birds flying in a V - formation.»
Not exact matches
Alternatively, the
birds may have lost their ability to
fly simply because they didn't need to
migrate or escape from predators.
Squadrons of planes can save fuel by
flying in a V formation, and many scientists suspect that
migrating birds do the same.
The research findings also support the hypothesis that
birds migrate to a greater extent than bats, and over longer distances, because bats» ears create resistance that makes
flying more energy - intensive.
Migrating to
Birds While small mammal and reptile ownership is on the rise, unfortunately birds have flown out of favor with some consu
Birds While small mammal and reptile ownership is on the rise, unfortunately
birds have flown out of favor with some consu
birds have
flown out of favor with some consumers.
This is why these things are decimating
migrating birds, best wind sites are also the migration routes for
birds flying south in winter, and nobody did the assessments to learn this.
This is also major stopover habitat, where
migrating birds are not merely
flying over, but landing and taking off — often during poor weather conditions.