This little bird is a Yellowhammer it's numbers have decreased alarmingly over the last 25 years probably due to modern farming practices. They are now on the red list of endangered birds which is a real shame. Found on hedgerows and bushes they feed on grain and seed.
Fortunately for me we have quite a few living on the hedges that run alongside the canal, they seem quite used to people so you are able to get near for decent photographic opportunities. Such a pretty little bird!