Handbook to the Partners in Flight Population Estimates Database, Version 3.1 Partners in Flight Technical Publication No. 7.1 Partners in Flight Science Committee June 2020 Authors: Tom Will,1 U.S. Fish and Wildlife Service Jessica C. Stanton, United States Geological Survey Kenneth V. Rosenberg, Cornell Lab of Ornithology and American Bird Conservancy Arvind O. Panjabi, Bird Conservancy of the Rockies Alaine Camfield, Canadian Wildlife Service, Environment and Climate Change Canada Allison Shaw, Bird Conservancy of the Rockies Wayne E. Thogmartin, United States Geological Survey Peter J. Blancher, Emeritus, Environment and Climate Change Canada Recommended Citation: Will, T., J.C. Stanton, K.V. Rosenberg, A.O. Panjabi, A.F. Camfield, A.E. Shaw, W.E. Thogmartin, and P.J. Blancher. 2020. Handbook to the Partners in Flight Population Estimates Database, Version 3.1. PIF Technical Series No 7.1. pif.birdconservancy.org/popest.handbook.pdf 1 primary contact:
[email protected] PIF Population Estimates Database Handbook—Version 3.1 2 Preface This document describes the content of Version 3.1 of the Partners in Flight (PIF) Population Estimates Database (PIF 2020b), which provides population estimates for breeding USA/Canada landbirds at several geographic scales following the Partners in Flight approach described initially in Rich et al. (2004), by Rosenberg and Blancher (2005), and most recently refined by Stanton et al. (2019). The Handbook also provides details about how the estimates were derived, information on limitations and caveats, a guide to using the estimates, and future desired directions for improving the estimates. This version of the database is intended as a companion to the Partners in Flight Landbird Conservation Plan: 2016 Revision for Canada and Continental United States (Rosenberg et al.