This data set contains data describing Grasshopper Sparrow nests. These nests were primarily found by rope dragging but also on surveys (see RI Survey Data Set), flushing birds during other activities, and via behavioral observations. We described nest contents and monitored nest fate via visits every 2-3 day and by placing an iButton placed in the center of the nest flush with the bottom of the nest cup and comparing temperature traces to a second iButton placed outside of the nest to determine the timing of nest failure and other metrics of incubation/brooding behavior. We compiled counts of partial egg loss, partial brood loss, and estimated causes of nest failure, comparing the timing of these events with KNZ-collected meteorological data to determine the temporal association between rainstorms and nest abandonment.
Codes Used: GRSP Grasshopper Sparrow (Ammodramus savannarum) BHCO Brown-Headed Cowbird (Molothrus ater) NOAA National Oceanic and Atmospheric Administration Color Band Color Abbreviations: A Gray B (Light) Blue D Dark (Blue) G Green K Black O Orange P Pink R Red S Silver W White Y Yellow Observers: AB W. Alice Boyle ADT Alaina Thomas AJH Alex Henry AMC Amanda Charpinel BJR Breyana Ramsey BV Bram Verheijen CES Chelsea Sink CRW Caitie Weichmann DDH Destiney Hett DJS Dylan Smith EJH Emily Hudson EJW Emily Williams HN Hunter Nedland JMG Jackie Gehrt KRW Kyle Wait LTA Lauren Angermeyer MLG Michaela Gustafson SKW Sarah Winnicki SVR Suzy Replogle Curnutt Method: BO Behavioral Observation RW Random Walking RD Rope Dragging OT Other UN Unknown Stage: BU Building LAY Laying IB Incubating NG Nestlings FL Fledged/Fledglings Inferred Fate: SU Fledged ≥1 GRSP SC Fledged ≥1 GRSP and ≥1BHCO CO Fledged only BHCO or abandoned due to cowbird parasitism PR Nest contents eaten AB Abandoned for no apparent reason TR Trampled by livestock WE Nest flooded, nestlings died of exposure HU Suspected human-caused abandonment or destruction
For additional metadata information see: http://lter.konza.ksu.edu/sites/default/files/DC.pdf
For additional methods information see: http://lter.konza.ksu.edu/sites/default/files/MM.pdf