资讯
Peak migration is defined by the seasonal window during which about 50% of nighttime bird migration traffic passes through an ...
"On a big night in the spring, you're talking 450 to 500 million birds flying under cover of darkness." Here's what to know. Cornell University's Lab of Ornithology hosts a BirdCast Migration ...
An estimated 1 billion migratory birds die each year in North America because of collisions with homes, commercial buildings, ...
To even the casual observer, nature seems to really come alive in April, as bird song is omnipresent, and the geese are ...
Radar tracking allows you to follow along to see what birds are flying overhead as the birds move to their summer feeding grounds. "The movements are massive," said Andrew Farnsworth, a migration ...
If birds left tracks in the sky ... while European herring gulls fly overhead. Near the fishing village of Roses, Spain, seagulls form a dreamy tableau as they chase a boat for scraps.
Bright lights may cause the birds to circle, call to each other, descend to a lower level, or fly off course toward the ...
All birds fly high in the sky, soaring to new heights in search of a home and food. However, while some are always visible to us-- like pigeons and crows-- others do not even catch the human eye ...
Picture yourself, walking through the woods or along the shore of Lake Michigan. What do you notice? Maybe you see birds flying overhead, waves crashing on the beach or trees with new buds as a sign ...
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