Elepaio nest monitoring data in Hawaii Volcanoes National Park from 2015-2017

We evaluated the nesting response of Hawai‘i ‘Elepaio (Chasiempis sandwichensis; Monarchidae), a generalist insectivore, to the removal of black rats using rodenticide in a before-after-control-impact study in high and low, mesic montane habitat recovering from long-term damage from introduced ungulates and weeds. We monitored nesting activity during 2015–2016 before applying diphacinone bait in 2017 to remove rats from two 700 x 700-m treatment plots that were paired with two non-treatment plots. We continued monitoring through July 2017.
This data set includes a summarized account of Elepaio nests during the 2015, 2016, and 2017 breeding seasons. There is a unique identifier for each nest ('NestID '), along with information on the site, fate (0=fledged, 1=failed), elevation and whether the nest was on a site treated for black rat removal ('impact'), or a non-treated ('control') plot. Also listed for each entry is the day of the year the nest was found, 'DayFound'; the day it was last known to be active, 'DayLastPresent'; the day it was last checked, 'DayLastChecked', and the age of the nest when found, 'AgeFound'.