Micronesian Starling (Aplonis opaca) nesting data on Guam, 2015-2018

We designed and implemented snake-resistant nestboxes and tested their efficacy as a conservation tool by comparing nest survival in nestboxes to natural nests for Aplonis opaca (Såli, Micronesian Starling) on Guam. During 2016-2018, we monitored 340 nest attempts by 40 A. opaca pairs nesting in nestboxes and 53 attempts by 32 pairs nesting in natural nests (outside of nestboxes), for a total of 393 nests. Nest data recorded included nesting pair identification, day that nest was first found, last day the nest was checked alive, the last day the nest was checked, failure stage (if applicable), nest substrate (utility pole, coconut tree, other urban structure), type of nest (polyvinyl chloride material, cedar wood, natural nest), closest distance to forest edge, clutch size, number of hatchlings, and number of fledglings for each nest (Nest_MIST.csv). Daily weather data recorded included maximum daily temperature and wind speed, and total daily precipitation (Weather_MIST.csv).