A lifetime of sightings?  Anywhere in the world?  Yes.

Runs on Windows, MacOS and Linux?  Without emulation software?  Yes.

Easy-to-use?  Fast data entry?  Yes.

Fast import from eBird, Avisys, BirdBase, and more?  Yes.

Hundreds of built-in country and state checklists?  Yes.

Big price?  No.  It's free.

Scythebill is a desktop application for birders to keep track of their life lists and birding records. There's plenty of great birdlist software and birding software available today, but:

• Scythebill is free (and will remain so).
• Scythebill is easy-to-use. It takes a few minutes to get started.
• Scythebill is powerful - loads of features, like flipping between the Clements and IOC checklists
• Scythebill is cross-platform - you don't need to lose your list just because you switch from Mac to Windows to Linux.
• Scythebill is open-source, so anyone can contribute to its development.

New - Scythebill 14.3 is available!

Scythebill 14.4 adds Birder's Diary and Bird Brain imports, plus a faster way to find species in Browse by location and Show reports.

Other recent versions have added IOC 9.1, eBird/Clements 2018, a new "Splits and lumps" report, a "Never" reporting option, and support for multiple observers in a single .bsxm sightings!   See the Scythebill blog for all release notes.

Also new - more extended taxonomies!

The mammal taxonomy is now updated to May 2018.  And there's an extended taxonomy for North American moths!