Old Moor babies

Another gorgeous day and a chance to enjoy some sun at the RSPB reserve at Old Moor.  We were fortunate in having this family enjoying the grass just outside the hide window, but unfortunately my experiment in using the Panasonic 100-300 lens on my new Olympus camera was totally successful.  I think there might be a clash of image stabilisation between the two systems.  I've been trying to research it on the web, but have only partially got an answer.