Janet M Ruth 2017 tabular digital data https://doi.org/10.5066/F7C53JCF Ruth, J. M. 2017 Publication The American Midland Naturalist Vol. 178, Issue 1, pg. 64-81. Notre Dame, IN University of Notre Dame https://doi.org/10.1674/0003-0031-178.1.64 Ammodramus savannarum ammolegus (commonly referred to as the Arizona Grasshopper Sparrow) occurs in the desert and plains grasslands of southeastern Arizona, southwestern New Mexico, and northern Sonora, Mexico. Although a subspecies of conservation concern, this data was produced as part of the first intensive study of its life history and breeding ecology, providing baseline data and facilitating comparisons with other North American Grasshopper Sparrow subspecies. This study is described in the publication listed in the larger work citation of this metadata record. In 2013, the dimensions (length and width) of 1–2 eggs were measured in a randomly selected subset of nests as soon after the nest was found as possible. The primary objective of this study was to provide baseline data that would address the information gap for this subspecies of conservation concern. Specifically, I estimated basic life history attributes of ammolegus including male mass and morphometric measurements, territory size, and return rates, as well as nest placement and orientation, nest and egg dimensions, clutch size, and nest parasitism rates. The secondary objective of this study was to compare ammolegus morphometric and mass estimates with available data for other Grasshopper Sparrow subspecies. 20130723 20130814 observed Planned None planned -110.5997 -110.5084 31.6991 31.5974 Audubon Appleton-Whittell Research Ranch, BLM and Las Cienegas National Conservation Areas USGS Thesaurus birds ecology None Arizona Grasshopper Sparrow desert grassland grassland bird life history Ammodramus savannarum ammolegus egg dimensions USGS Metadata Identifier USGS:592727dfe4b0b7ff9fb5dca1 Common geographic areas United States Arizona Santa Cruz None Audubon Appleton-Whittell Research Ranch, Bureau of Land Management (BLM) Las Cienegas National Conservation Area None. Please see 'Distribution Info' for details. None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. Janet M Ruth U.S. Geological Survey, SOUTHWEST REGION Research Ecologist Mailing

1 University of New Mexico

Albuquerque NM 87131 US 505-277-0180 916-278-3070 janet_ruth@usgs.gov Audubon Appleton-Whittell Research Ranch, Bureau of Land Management (BLM). Funding – USGS and Bureau of Land Management’s National Landscape Conservation System (NLCS) Science program None Arizona Grasshopper Sparrow Kingdom Animalia animals Subkingdom Bilateria Infrakingdom Deuterostomia Phylum Chordata chordates Subphylum Vertebrata vertebrates Infraphylum Gnathostomata Superclass Tetrapoda Class Aves Birds Order Passeriformes Perching Birds Family Emberizidae Emberizid Finches Genus Ammodramus Grassland Sparrows Species Ammodramus savannarum Grasshopper Sparrow Subspecies Ammodramus savannarum ammolegus TSN: 179337 No formal attribute accuracy tests were conducted. No formal logical accuracy tests were conducted. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. See paper or individual metadata records for detailed descriptions of the processing steps taken. 2013 GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner whenever applicable. The data have been approved for release and publication by the U.S. Geological Survey (USGS). Although the data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the data are released on the condition that neither the USGS nor the U.S. Government may be held liable for any damages resulting from authorized or unauthorized use. Although the data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Users of the data are advised to read all metadata and associated documentation thoroughly to understand appropriate use and data limitations. Digital Data https://doi.org/10.5066/F7C53JCF None. No fees are applicable for obtaining the dataset. 20200820 Colin Talbert U.S. Geological Survey, Southwest Region Ecologist Mailing

2150 Centre Avenue Bldg C

Fort Collins CO 80526 United States 970-226-9425 970-226-9230 talbertc@usgs.gov FGDC Biological Data Profile of the CDGSM FGDC-STD-001.1-1999