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, BirdTrack, and more?  Yes.

Birds, butterflies, reptiles, and more, around the world?  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, and just seconds to import a lifetime's eBird sightings.
• Scythebill is powerful - loads of features, like instantly 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 16.0 is available!

Scythebill 16.0.0 includes the brand new eBird/Clements 2023 taxonomy and a variety of smaller improvements.

Other recent versions have added the IOC 13.2 taxonomy, extended taxonomy country checklists, BirdTrack support, reporting, location, species browsing, and sighting entry improvements, Flickr imports, iNaturalist import and export, family and trip reports, favorite photos, HBW, Birder's Diary and Bird Brain imports, and much more!   See the Scythebill blog for all release notes.

Also new - more extended taxonomies!

There's new butterflies, mammals, reptiles, amphibians, and odonates of the world taxonomies (with country checklists!)  as well as taxonomies for European dragonflies and damselflies, North American moths, and three new taxonomies for United Kingdom invertebrates!