I'm so stupid - why haven't I told you about Amelanchier before now. It is a fabulous tree/shrub. (grow it on a single stem as a smallish tree, cut the single stem down to form a shrub)
Lovely spring flowers
berries that the birds go crazy over (in July)
pretty spring foliage
and lovely autumn colour
Here's the write up I found.
Common Name: Snowy mespilus
Genus: Amelanchier
Species: lamarckii
Skill Level: Experienced
Exposure: Full sun, Partial shade
Hardiness: Hardy
Soil type: Clay/heavy, Chalky/alkaline, Well-drained/light
Height: 1000cm
Spread: 1200cm
Time to take cuttings: May to July
A very beautiful, small North American tree that is attractive at all seasons, even in winter when its spreading crown of fine shoots makes a satisfying, dense, shrubby shape. In March the branches erupt with a froth of star-shaped flowers in lax conical heads, just as the coppery pink young leaves unfold - in summer these are yellowish green, but later turn scarlet and crimson. In July the tree is studded with dark red berries which become purple-black as they ripen. Often found growing wild as an escape, and sometimes mistakenly called A. canadensis.
The Royal Horticultural Society has given it its prestigious Award of Garden Merit (AGM).
Must now go and get one - don't know why we haven't got one here, have had them in all our previous gardens.
Ours are in full blossom right now Unfortunately the blossom does not last very long.
They set small berries, which the birds love. Many fruit growers here have Amalanchiers planted around the perimeter of their orchards/vineyards to protect fruit from the birds. Don't know how effective it is - but they look lovely