ABSTRACT The Dry-forest Sabrewing Campylopterus calcirupicola is a recently described species of hummingbird endemic to the seasonally dry forests of eastern Brazil. In this paper, we describe for the first time the nest of the species based on seven breeding attempts recorded in the municipality of Montes Claros, state of Minas Gerais. The nest is cup-shaped and built with plant down strengthened with arthropod silk, with abundant moss and some lichens on its exterior. The clutch size is of two white eggs. Nests are placed within limestone caves or arches, close to watercourses. We suggest that this unusual nest site is a possible adaptation to breed in the hot and seasonally dry habitat of the species.

中文翻译：

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干林 Sabrewing Campylopterus calcirupicola (Aves: Trochilidae) 在石灰岩洞穴中筑巢

摘要 干林 Sabrewing Campylopterus calcirupicola 是最近描述的一种蜂鸟，原产于巴西东部季节性干燥的森林。在本文中，我们根据米纳斯吉拉斯州蒙特斯克拉罗斯市记录的七次繁殖尝试，首次描述了该物种的巢穴。巢呈杯状，用植物羽绒制成，并用节肢动物丝加固，外部有丰富的苔藓和一些地衣。离合器大小是两个白鸡蛋。巢位于石灰岩洞穴或拱门内，靠近水道。我们认为这个不寻常的巢穴可能是为了适应该物种在炎热和季节性干燥的栖息地中繁殖。