Stefos has correctly pointed out that you can post such questions, with links to pictures, right here on AB. Either 'Home & Garden' or 'Animals and Nature' might be suitable categories.
However, web gallery sites, such as Yahoo, Webshots, Picasaweb, Flickr and Snapfish all require that you go through a registration process, which is a bit of a pain if you only want to put one or two pictures online. The service that is most commonly used by ABers is Tinypic. This enables you to put individual pictures online, with just a few clicks (and no registration process). You can copy and paste the link into your question here on AB:
http://www.tinypic.com/
Alternatively, you might find your answer by looking at this site:
http://www.toof.org.uk/identify/
Chris