海量图书期刊资源，随时随地畅享阅读乐趣
Estimating Survival of Precocial Chicks during the Prefledging Period Using a Catch-Curve Analysis and Count-Based Age-Class DataConor P. McGowan, Joshua J. Millspaugh, Mark R. Ryan, Casey D. Kruse and Greg Pavelka · Journal of Field Ornithology · 2009