Nature: Great tits who meet their 'spouses' earlier are more likely to breed successfully

Researchers from Oxford tracked hundreds of breeding pairs of great tits in a nearby wood to determine how the speed of pairing impacted the birds lives as a couple.

Energetic and behavioral consequences of migration: an empirical evaluation in the context of the full annual cycle

Breeding success of the Great Tit Parus major in relation to attributes of natural nest cavities in a primeval forest

More ornamented females produce higher-quality offspring in a socially monogamous bird: an experimental study in the great tit (Parus major), Frontiers in Zoology

Birds and bees: why new buildings need to support the natural world

Breeding Great Tits can be picky - British Ornithologists' Union

Great tit - Wikipedia

Scientists Instil New Cultural Traditions in Wild Tits

All about the Blackbird - GardenBird

Woodpeckers: The Hole Story, About, Nature