Default "Location Filter" to the current site
When creating a new entry, could the Location Filter be set to default to the current site. Most of the time people doing the same site see birds already on their list. On the odd occasion that someone sees a new species, they would then either have to change the location filter, but I'm guessing this won't be the norm'. New sites would need to default to the next level up (or have no filter).
This is now possible as part of the version 5 software.
Mike Galtry commented
A great idea for often visited sites, but it will be annoying for when visiting occasional sites where the filtered list will be only 5 or 6 species.
Perhaps default to the lowest list with more than 20 species after filtering.
Enabling the search to access the country checklist unfiltered rather than limiting it to the existing filtered list will make it much easier to add a new species.