Thatś a yellow-rumped warbler wearing a multisensor geolocator backpack

The tracker must be light enough to not weigh down a bird that weighs only as much as a spoonful of sugar, and it was used as part of this study:
Tiny backpacks reveal the secret, sometimes circuitous migrations of small songbirds
You see, this is how you get people to believe birds arent real.
save