Birds needing a bigger entrance hole

Great Spotted Woodpecker Dendrocopos major

Britain’s commonest woodpecker likes to excavate its own nesting chamber from soft-wooded deciduous trees. You can encourage them to use nestboxes putting a lump of soft wood inside, so that they can hollow out the nest cavity for themselves.

Large nestbox with 50mm hole
Nest height 3m-5m above ground
No nest is made
Egg laying starts between late April and mid June
4 to 6 eggs, white
Incubation time 14-16 days
Nestlings fledge after 20-24 days

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21 Facts about Great Spotted Woodpeckers >

Starling Sturnus vulgaris

Starling populations have declined dramatically in recent decades – but nestboxes can help. These gregarious birds will happily nest in close proximity to their neighbours, which means you can group several boxes high on a house wall, or on adjacent trees if you have a larger garden.