Pinyon jays (Gymnorhinus cyanocephalus) are experiencing range wide population declines primarily in response to habitat degradation. More studies examining pinyon jay nest site selection in pinyon-juniper woodlands would be helpful in determining potential habitat management prescriptions. Therefore, we conducted a nest site selection study in pinyon jay breeding habitat in central New Mexico. We compared size and foliage characteristics of pinyon and juniper trees in 42 17.5-m radius plots around pinyon jay nests to 41 same-sized vegetation plots in random locations using binomial generalized linear models. The strongest model indicated that pinyon jays preferred nesting in areas with fewer dead juniper trees within pinyon-juniper habitats. In contrast to previous studies, pinyon jays tended to nest in juniper-dominated areas as opposed to pinyon-dominated areas, possibly in response to widespread pinyon mortality at the study site. Results suggest that pinyon jays may be able to adapt to climate-related pinyon mortality by shifting to juniper dominated habitat.

Pinyon jays ( Gymnorhinus cyanocephalus) 正在经历范围广泛的人口下降，主要是由于栖息地退化。更多关于松鸦杜松林地松鸦巢选址的研究将有助于确定潜在的栖息地管理方案。因此，我们在新墨西哥州中部的松鸦繁殖栖息地进行了巢址选择研究。我们使用二项式广义线性模型比较了松鸦雀巢周围 42 个 17.5 米半径地块中松柏树和杜松树的大小和叶子特征与随机位置的 41 个相同大小的植被地块。最强的模型表明，松鸦更喜欢在松树-杜松栖息地内枯死的杜松树较少的地区筑巢。与之前的研究相反，松鸦倾向于在杜松占主导地位的地区筑巢，而不是在松鸦占主导地位的地区筑巢，可能是为了应对研究地点普遍存在的 pinyon 死亡率。结果表明，松鸦可能能够通过转移到杜松占主导地位的栖息地来适应与气候相关的松鸦死亡。