Use the Search Sightings Page. Here you can choose a species and if looking for a specific occurence you can restrict the date and/or location to narrow your search. All sightings show any photos that were attached.
Example: Show me all photos of Isabelline Wheatears recorded on website.
Go to the Search Sightings Page
Enter species type : Birds
Species: isa (the first 3 letters of the name) will bring up Isabelline Wheatear – click on it
Scroll down and you will have a list of all Isabelline Wheatear sightings together with photos. Click on the camera signs to view them.