You may delete a sighting by navigating to My Sightings in the top nav bar. Click the sighting you wish to delete and then click the red 'delete' button near the bottom of your sighting. You may undelete your sighting at any time.
If you think you've found a bug or anomaly with the site, don't hesitate to send us a note, using the contact form. Please navigate to the page with the problem, and copy and paste the URL into your message. Please include details and basic information about your browser (i.e. Chrome, Safari, Edge, IE, etc.). Thanks for the help!