Despite the suggestion from several meta-analyses that nest predation is not limiting songbird populations, responses to experimental removal of nest predators, such as corvids, have varied.

The impact of nest predation by corvids on songbird populations is unclear. One potential explanation for this disparity is that susceptibility could vary according to the nesting biology of a species. To investigate this hypothesis, we conducted a review of studies detailing nest predation on UK songbirds and extracted the reported rates of nest predation from 80 papers which attempted to identify the predators responsible. We found that corvids were significant predators of songbird nests (24% of nest predation was attributed to corvids). However, species that construct open nests, and whose breeding season overlaps considerably with the breeding season of magpie and jay, incurred the highest rate of nest predation by corvids specifically (different factors predicted predation by non-corvid predators). We then used attributes of nesting biology to predict predation rates for UK breeding species for which we found no empirical data (n = 31). Although, in most cases cited in the literature songbird populations are unaffected by changes in corvid numbers, there are some cases in which species we predicted to be more susceptible to corvid predation responded to changes in corvid numbers. However, an understanding of how of other predators and other non-predation-related factors limit both songbird breeding success and songbird population numbers is necessary in any conservation management of songbird populations.

尽管一些荟萃分析表明巢穴捕食不会限制鸣禽种群，但对实验性去除巢穴捕食者（例如鸦科动物）的反应各不相同。

鸦科鸟类捕食巢穴对鸣禽种群的影响尚不清楚。这种差异的一个潜在解释是易感性可能会根据物种的筑巢生物学而有所不同。为了调查这一假设，我们对详细介绍英国鸣禽的巢穴捕食情况的研究进行了回顾，并从 80 篇试图确定捕食者的论文中提取了报告的巢穴捕食率。我们发现鸦科动物是鸣禽巢的重要捕食者（24% 的鸟巢捕食归因于鸦科动物）。然而，建造开放巢穴的物种，其繁殖季节与喜鹊和松鸦的繁殖季节有相当大的重叠，特别是鸦科动物的巢穴捕食率最高（不同的因素预测非鸦科掠食者的捕食）。n  = 31）。尽管在文献中引用的大多数情况下鸣禽种群不受鸦科动物数量变化的影响，但在某些情况下，我们预测更容易受到鸦科动物捕食的物种会对鸦科动物数量的变化做出反应。然而，在鸣禽种群的任何保护管理中，了解其他捕食者和其他与捕食无关的因素如何限制鸣禽繁殖成功和鸣禽种群数量是必要的。