We are grateful for the commitment and dedication of our former Advisory Committee, Partners,and Working Groups and to Joseph Caprio (1923-2011) who established the Lilac Network in the Western USA, the foundation for our current program.

Many individuals contributed to the selection of species and the development of protocols,  through the course of the development of Nature's Notebook. We would also like to thank those who have generously shared their photographs for our website.

We are grateful to Toby Ault, Dawn Browning, Sarah Elmendorf, Katie Jones, Susan Mazer, Dave Moore and Mark D. Schwartz for their contributions to the development of USA-NPN data products.

Our Nature's Notebook observers are greatly appreciated for their continued efforts to see and share the changing phenology around them!