Because it is still winter. Plenty of time for warm Spring and Summer
days.

Try and tell that to the frogs, bumblebees and ladybirds. The blackbirds are
going mad too. It'll come as a shock if it goes cold again. Then again, we
nearly always get a cold spell at some point during the real spring. Last
April is an example.

My Ma says there is always a touch of spring in a Devon winter.
________________
Nick.
Otter Valley, Devon
83 m amsl
http://www.ottervalley.co.uk