Go birding on your command line!
Using cabal:
cabal install ebird-cli
This will install the ebird executable. To see the list of commands, try:
ebird --help
There is one command per endpoint of the official eBird API, as listed in their
documentation. Some commands require an API key, which can be
obtained here. If a command requires an API key,
the key can be provided via the --key or -k option. If no key is provided
via the options, the CLI will attempt to read a key from a file located at
$HOME/.ebird/key.txt. If no key is available there (and none was provided via
the options), the command will fail.
Please don't hesitate to open an issue (or a pull request!) if something doesn't work as expected.