Guess what's back!!

Yesterday in an effort to prevent cabin fever after a week of confinement due to illness, bit of hyperbole, in other words thanks to man flu I have not been training, I got out on the hill on a 13 mile route march and found this green menace growing rapidly. Its back, really early this time.
Talking of early birds, I saw a house martin today. Again a bit earlier than usual. About 5 pm.