For instance, researchers use the backyard sightings that users submit to Project FeederWatch —a joint program run by the Cornell Lab of Ornithology and Birds Canada —to track long-term changes in ...
The DIY Requests list will refresh with a new batch of Requests with x2 bonuses when you move to a different week: until then, the DIYs on the list will carry over to the next day. This may be ...
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