![]() The study concluded that species of higher conservation concern in the U.S. Intense commercial farming is known to harm birds - fields completely clear of trees and other natural barriers lack shelter for wildlife, and pesticides and other agricultural chemicals can hurt birds. ![]() The information you need to know, sent directly to you: Download the CTV News App.The new study represents a closer look at what might be behind the dramatic decline. In 2019, a comprehensive study showed that there were three billion fewer wild birds than in 1970. "I don't think we expected it to be as extreme as it was," said Katherine Lauck, a PhD candidate at University of California, Davis and lead author of the study published Thursday in the journal Science.īird scientists have been tracking the decline of avian wildlife for years. Researchers who examined data on over 150,000 nesting attempts found that birds in agricultural lands were 46 per cent less likely to successfully raise at least one chick when it got really hot than birds in other areas. ![]() That could be another barrier to maintaining rapidly eroding biodiversity that also provides benefits to humans, including farmers who get free pest control when birds eat agricultural pests. As climate change intensifies extreme heat, farms are becoming less hospitable to nesting birds, a new study found.
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