Climate change affects early migration of birds to find food

American researchers used extensive information from artificial intelligence to collect radar data over 24 years in the migration behaviors of hundreds of species of birds representing billions of total birds.

They found that birds that have synchronized their migration with food availability which is influenced by climate change now find their migratory clocks out of normal time.

The temperature and migration are so linked that the biggest changes in migration times occur in the rapidly warmer US regions.

The changes were more pronounced during the spring migration than in the autumn, as birds rush to reach breeding grounds.

Because of climate change, these factors may now not be syncing with the passage of migratory birds, and even delicate shifts can have negative effects on their health.

And monitored shifts do not mean migrants are keeping pace with climate change.

“Bird migration evolved mainly as a response to climate change,” said author Andrew Farnsworth of the Cornell Ornith laboratory.

The authors believe that it is one of the first studies to examine the impact of climate change in bird migration times.

The team used a machine learning tool called “MistNet”, developed by Professor Dan Sheldon at the University of Massachusetts Amherst, which helps identify bird anomalies, broadcast Kosova Prees.

The team selected 2,115 nights in spring and 2,152 per year with a total of more than 13 million radar scans from 1995 to 2018. In the future, the team plans to expand their data analysis to include Alaska, where climate change has the most serious impact that 48 US states have.