A system for encoding bird field notes

If the sightings all occurred within an area defined by a location code, this attribute is a reference to the definition of that code in a loc element within the day's day-summary element. If a sighting has no explicit loc attribute, its value defaults to the code given in the default-loc attribute of the day's day-summary element.

For example, a sighting of a Merlin at Bosque del Apache (location code BdA):

    <form ab6='merlin' count='1' loc='BdA'/>

You can attach a GPS waypoint's coordinates to this sighting with this attribute. Example:

    <form ab6='heptan' gps='340058n 1070839w'/>

For the general form of this attribute, see Section 3.2.2, “GPS coordinates”.

You can add arbitrary text describing the details of the sighting's locality by enclosing it in a loc-detail element. Example of a conspicuous Greater Roadrunner on a golf course:

    <form ab6='greroa' count='1' loc='GC'>
      <loc-detail>
        Perched on the 4th tee marker monument stone.
      </loc-detail>
    </form>

For the definition of narrative, see Section 5.15, “The narrative elements”.