Nature's Notebook gathers information on plant and animal phenology across the U.S. to be used for decision-making on local, national and global scales to ensure the continued vitality of our environment.

Scientists alone cannot collect enough data: They need your help. Join more than 15,000 other naturalists across the nation in taking the pulse of our planet. You'll use scientifically-vetted observation guidelines, developed for over 1000 species, to ensure data are useful to researchers and decision-makers.