This is todays post because of my stupidity and haste. I went looking for a photograph and these two and their two siblings came over and posed together in a lovely family group right next to me. A simply prefect composition, only camera would not focus, tried again still no joy. I checked camera settings as they sat there, everything seemed right. Then I spotted I still had a close-up lens filter on the camera from yesterday, quickly unscrewed this off the front of the lens and pointed camera back at them as they got fed up of posing and split up.
Doh !!