What is a primary threat causing localized population declines for the Hooded Oriole, such as in the Lower Rio Grande Valley?

Answer

Brood parasitism by the Brown-headed Cowbird and the Bronzed Cowbird

The primary threat cited across its range causing localized population declines is brood parasitism by the Brown-headed Cowbird and the Bronzed Cowbird.

What is a primary threat causing localized population declines for the Hooded Oriole, such as in the Lower Rio Grande Valley?
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