When scientists need to capture birds for research, they often use a mist net, a length of fine mesh strung between two poles on the ground. But what about catching birds that stay up in the treetops? Researchers studying Red-headed Woodpeckers in Virginia used fishing rods to cast lines up into the canopy so they could hoist nets up to the level of the woodpeckers’ nest cavities. 

More info and transcript at BirdNote.org. 

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