Acknowledgements

The A.T. Seasons and all of it's partners and affiliates would like to extend gratitude for those who helped develop this project. 

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

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. Also, we extend thanks to the individuals who provided sound clips for the species, listed below.

Black-Throated Blue Warbler - Mike Nelson, XC135494. Original accessible here
Black-Throated Green Warbler - Mike Nelson, XC135495. Original accessible here
Winter Wren - Mike Nelson, XC138312. Original accessible here
Black-Capped Chickadee - Mike Nelson, XC139603. Original accessible here
86399 - Wood Frog - Lithobates sylvaticus - Robert C English - United States, Tennessee - 10 Feb 1997 - Macaulay Library, Original accessible here - Cornell University
179142 - Spring Peeper - Pseudacris crucifer - H. Carl Gerhardt -  United States, North Carolina - 13 Apr 1969 - Macaulay Library, Original accessible here - Cornell University