With "Function", i ment what appears in the function-menu of Locus and what can be put into the right icon bar.
This should offer the possibilities to add a species, the spotted count of them, and the date.
I think just collection points won't be enough. It would be better, if it can be an own type of point, like the parking-place. (The additional information can be handled in the addon).
It is very common for bird-spotters watch and cound tens of thousends of birds,(of different species), during their migration.
So, what they need is a menu for a specific place, where they can add and count birds.
At some time, they like to transfer their counts into a internet-database and share it with other ornitologists for scientific analysis.