Ecologists and wildlife managers require useful tools to reduce the human-wildlife conflict. So far, little attention has been paid to the damage caused by avian nesting on man-made structures. We weighed 145 occupied nests of the white stork (Ciconia ciconia) in eastern Poland and applied general linear models (multiple regressions) to predict a nest’s mass from its measurements. Nests measured showed large variation in size (mean ± SD = 140.9 ± 23.7 cm, range: 80–230 cm in diameter; 59.7 ± 27.8 cm, range: 10–140 cm in height) and weighted 70–1348 kg (mean ± SD: 378 ± 251 kg). We set up a free online calculator which uses model equations to estimate nest masses given nest dimensions. Apart from the management application, it can be used in ecological research, e.g. nests tracked over subsequent seasons, and even into account weather data to assess the effect of climate change.

生态学家和野生动植物管理者需要有用的工具来减少人类与野生生物之间的冲突。迄今为止，很少有人关注禽鸟在人造结构上筑巢所造成的破坏。我们称重了145个被占领的白鹳巢（Ciconia ciconia），并应用通用线性模型（多次回归）来根据其测量结果预测巢的质量。测得的巢显示大小变化很大（平均值±SD = 140.9±23.7 cm，范围：直径80–230 cm； 59.7±27.8 cm，范围：高度10–140 cm），重量为70–1348 kg（平均值±SD） ：378±251公斤）。我们建立了一个免费的在线计算器，该计算器使用模型方程来估算给定嵌套尺寸的嵌套质量。除管理应用程序外，它还可以用于生态研究，例如在随后的季节中跟踪筑巢，甚至可以考虑天气数据来评估气候变化的影响。