Point count offsets for estimating population sizes of north American landbirds

Brandon P.M. Edwards, Adam C. Smith, Teegan D.S. Docherty, Marcel A. Gahbauer, Caitlyn R. Gillespie, Alexis R. Grinde, Taylor Harmer, David T. Iles, Steven M. Matsuoka, Nicole L. Michel, Andrew Murray, Gerald J. Niemi, Jon Pasher, David C. Pavlacky, Barry G. Robinson, Thomas B. Ryder, Péter Sólymos, Diana Stralberg, Edmund J. Zlonis