Hi Anne

The batch update you have attached will do what you need it to do (change all American goldfinch records to become European goldfinch). Just bear in mind that there are no checks or fail safes - it will target all taxon occurrences in all surveys (not just the one selected). And it will change preferred and non-preferred determinations, so any observations originally recorded as American goldfinch but already re-determined as European goldfinch will be edited so that the original non-preferred observation will become European goldfinch - making the re-determination to the same species look odd. Plus the batch update doesn't update the last changed date/user of the determinations so there will be no track of the change and no determination comments of what has happened - but perhaps you are happy with that?

Andy