There are a couple of main special edition Hatchimals which are exclusive to specific retailers although they can also be found on reseller websites.
The Hatchimals Owlicorn is an exclusive to toysrus and contains one of two colours of unicorn-eque Hatchimals complete with horn. Both with a pink breast the owlicorn is available in pink or blue with contrasting wings and beak.
Buy the hatchimal owlicorn at Amazon UK
As the name suggests the Bearakeet has a more bear-like look to it with bears ears and slightly different breast design. As with all hatchimals you will get one of two colours from your bearakeet egg but this time it is a slightly less colourful white or black.
Buy the Bearakeet at Amazon UK