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Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Migration is inherently risky, due to predation and mortality. The Arctic tern holds the long-distance migration record for birds, travelling between Arctic breeding grounds ...
The Bird Migration Explorer, launched on September 2022, is an online tool that allows visitors to track the journeys of more than 450 migratory birds that regularly occur in the United States and ...
There have been some spikes throughout the last few weeks — including 83,000 birds that crossed Thursday night alone — but birding experts explained that peak migration patterns come in ...
The passing of the Migratory Bird Treaty Act of 1918 in the United States resulted in a need for more information on bird migration. Frederick Charles Lincoln was put in charge and improved methods for trapping and banding, developed record-keeping procedures, recruited banders, fostered international cooperation, and promoted banding as a tool for research and wildlife management.
Warmer springs bring changes in bird migration. Spring’s arrival has always shown variation. It may be early. It may be late. But researchers say the data studied over several decades shows ...
An analysis of bird strike data from three airports local to New York City and New Jersey from 2013 to 2018 indicates that 90% of reported bird strikes involved a migratory species, and 50% of strikes occurred during peak annual migration months in the spring and fall. [20]
Bird migration is controlled primarily by day length, signalled by hormonal changes in the bird's body. [20] On migration, birds navigate using multiple senses. Many birds use a sun compass, requiring them to compensate for the sun's changing position with time of day. [21] Navigation involves the ability to detect magnetic fields.
The Bird Migration Explorer mapping tool, available free to the public, is an ongoing collaboration between 11 groups that collect and analyze data on bird movements, including the Cornell Lab of ...