Thrushes (inc. Blackbirds) and finches can breed right throught the summer, in hedges, isolated shrubs (trimmed or untrimmed) and in ivy on walls or trees. So take care when trimming or cutting back.
The photo is of newly-hatched Dunnock chicks. The nest was in variegated Euonymus in a garden at Barkisland. It’s a shrub usually used for ground-cover, so very vulnerable to trimming or trampling.