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Birdathon for iOS

Developer's Description

Birdathon is a tool for recording your bird observations, organizing your bird checklists and sharing your birding adventures with others. Use Birdathon in the field to quickly record whether a bird is seen or heard and the number observed. The time and location of each observation is automatically recorded. You can correct the location, time entries and the count of birds observed at any time to ensure your records are accurate.

Checklist maps display the locations of your observations. You can overlay county boundaries for every US state. You can add a range circle such as a 5MR (5-mile Radius) to your maps.

Your checklists can be viewed in taxonomic order, alphabetically, by rarity or as a timeline of birds in the order observed. You can enrich your checklist with field notes and add observations such as mammals, butterflies, wildflowers, etc., to make it into a rich record of your experience. You can organize your checklists into categories such as Day List, Year List, County List, Life List, etc., and assign color themes to your lists.

Bird species may be added and deleted from your lists. You can create new checklist templates from your previous lists or import templates created by others. You can import a text file into Birdathon and it will automatically be made into a bird checklist template.

You can export your checklist as a comma-separated-values (csv) text file for import into eBird.

A Summary view aggregates bird observations from all your checklists across different time spans (week, month, year, etc.) and geographic locations, sorting the information in various ways. Summary maps and lists can be restricted to a specific geographic range. You can export Summary data into a csv text file or create a new checklist template from the Summary.

The bird species source data and other resources used in this app come from the following sources:

AOS Checklist 59th (2018) derived from the American Ornithological Society's Check-list of North and Middle American Birds, updated through the 58th supplement (July 2018). Copyright 2018 American Ornithological Society. Note: the AOS was formerly the American Ornithological Union (AOU). http://checklist.aou.org. Used with permission.

ABA Checklist v8.0.5 (December 2018) derived from the American Birding Association's checklist of North American Birds. Copyright 2018 American Birding Association, Inc. http://listing.aba.org/aba-checklist/. Used with permission.

Santa Clara County 2018 Checklist derived from the Santa Clara Valley Audubon Society 2018 and earlier Santa Clara County, California Bird Lists, maintained by Brooke Miller. http://www.scvas.org/page.php?page_id=6811. Used with permission.

Bird family names, world birds and taxonomic order come from the Clements 2018 Checklist, from the Cornell Lab of Ornithologys eBird/Clements checklist of birds of the world: v2018, by Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. http://www.birds.cornell.edu/clementschecklist/download/. Used with permission.

Banding codes come from The Institute for Bird Populations Standardized 4- and 6-letter Bird Species Codes, created by Peter Pyle and David F. DeSante, updated July 24, 2018. https://www.birdpop.org/pages/birdSpeciesCodes.php.

County boundaries are derived from the 2017 Cartographic Boundary Shapefiles provided by the United States Census Bureau. 500k resolution level (1:500,000 or approximately 500 meters). https://www.census.gov/geo/maps-data/data/cbf/cbf_counties.html.

App Preview music "Carefree" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0


Full Specifications

What's new in version 1.3.2


Release January 4, 2020
Date Added January 4, 2020
Version 1.3.2

Operating Systems

Operating Systems iOS
Additional Requirements Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.


Total Downloads 0
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