Bird Migration at Tring Reservoirs

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Autumn Migration Dates

Spring Migration Dates

Spring Migration

The movement is generally fairly urgent, they have made up their minds to go and they want to get there before the best nest sites have been taken. The migration may stop, or even retreat, if the weather turns poor again.

Spring Migration Dates

Autumn Migration

Generally more leisurely than spring migration. There is no rush except to stay ahead of bad weather and to keep up with food supply.

Autumn Migration Dates

Resident Birds

Those that think Tring Reservoirs is just the place to live all year round, including:

Thrushes, Robins, tits, finches, crows

Herons

Summer visitors

Those that think Tring Reservoirs is just the place to raise a family, including:

Warblers

Ariel feeders: Swallows, martins, swifts

Hobby

Winter visitors

Those that think Tring Reservoirs can support them through the rigours of winter, including:

Ducks

Winter thrushes: Fieldfare, Redwing

Bitterns

Numbers of some of our resident species are boosted by birds from Europe (noticably Blackbird, Robin, Dunnock)

Passage birds

Those that use Tring Reservoirs as a service station en route to their destination beyond, including:

Terns: Black and Little (Common Terns breed at nearby College Lake and are present all summer)

Waders (mainly autumn migration)

Yellow Wags, Wheatear

Passage birds also include species that are winter visitors, summer visitors and even residents and temporarilly boost our our numbers of these species. For example you'll see large flocks of Fieldfare and Redwing end of October/early November, but then the numbers will reduce for the rest of the winter.