Monday see the start of this year's season at the Ness of Brodgar excavations - which can be followed as it happens at: http://www.orkneyjar.com/archaeology/nessofbrodgar/
Been seeing a lot of short eared owls this year - more than usual I think, there was one hunting in the next field as I took the dogs out today, and there seems to always be one sitting on the fence post as I'm leaving in the morning.
Puffins have been very obliging down at the Brough of Birsay too - I'm always wary of promising folk puffins as they tend to not be there when you want them, but it's been OK so far this year. There were 3 sitting on a ledge just below us yesterday, posing happily for the camera, along with some razorbills. I feel a bit sorry for the other birds - it's just the puffins that everyone wants to see, the others must feel left out!
http://www.orkneyarchaeologytours.co.uk