Having just returned from Brazil I had several occasions where I inadvertently added the wrong bird species in using live position/time. Later in the day(s) I was informed of the errors, and whilst I could add in the correct species for that day I could not remove the other 'incorrect' species in the field as I would loose the time/position it was seen to add to the correct species with the same position/time. It would be REALLY helpful to have the ability to 'modify in the field' the species you initially entered and replace it correctly without having to add in the correct species that is at the wrong time/position and still have the incorrect entry remain because you need its data. I appreciate you can correct items on the full version, but it is not helpful when actually in the field. Far from ideal unfortunately.