To add photos to a message you're writing on a forum thread, you need to click 'Use rich formatting' on the bottom right of the message box - that gives you more options for composing your message, including a photo uploader. For identification, try starting a new thread in this sub-forum: www.rspb.org.uk/.../902.aspx
My blog: http://mazzaswildside.blogspot.co.uk/
My Flickr page: https://www.flickr.com/photos/124028194@N04/
PS - I have had a look through your gallery and commented on the pics that needed identifying :) The way this community is set up means that there's no obvious notification when someone posts a photo in their gallery, so the galleries tend to get overlooked. You are better off using the forums, like this one: www.rspb.org.uk/.../13609.aspx for general wildlife conversations, and this one: www.rspb.org.uk/.../2542.aspx for general chit-chat :) The layout is rather confusing!