Posted: 24/01/2015 at 10:39
Dry porridge oats are fine for birds - blackbirds love them - after all, grain in the field is dry. The blackbirds in our garden tuck into them regularly. Don't put out cooked porridge as it is sticky and will congeal around a bird's beak.
Of course, put out fresh water in a birdbath too.
Lots of info here http://www.rspb.org.uk/makeahomeforwildlife/advice/helpingbirds/feeding/whatfood/