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As you walk the paths around Swiss Valley Reservoir, you may hear birdsong before you ever see the birds themselves. To help visitors take notice of the wildlife that lives here, our cups feature a simple checklist of common local species. You can mark off the birds you spot along your walk, turning your visit into a relaxed, self-guided nature activity.
This page expands on that trail experience. Each bird from the checklist is shown here in full colour, with short descriptions to help with identification, along with audio recordings of their calls and songs. This means visitors can compare what they hear in the valley with real recordings, learn the differences between species, and build confidence recognising the birds they encounter.
Together, the checklist and this online guide provide a simple way for visitors of all ages to engage more closely with the natural environment while exploring the reservoir.

Wingspan: 25cm
Weight: 20g
Speed: 30km/h
Fun fact: In Victorian times, postmen wore red jackets and were nicknamed "Robins" — hence robins became a symbol of delivering Christmas cheer.
Often seen: around 'The Hwb'.

Wingspan: 185cm
Weight: 1500g
Speed: 56km/h
Fun fact: Herons can stand stock-still for hours while hunting, often resembling statues.
Often seen: around the Dam and Spillway.

Wingspan: 130cm
Weight: 2500g
Speed: 85km/h
Fun fact: In medieval Europe, cormorants were symbols of greed — but in parts of Asia, they’ve been trained to catch fish for fishermen for over 1,000 years.
Often seen: sitting on the moored up rowboats.

Wingspan: 28cm
Weight: 20g
Speed: 34km/h
Fun fact: These busy little birds seem to never stop wagging their tails — the reason is unclear, but might help flush insects from grass.
Often seen: from the bridge feeding on the spillway.

Wingspan: 20cm
Weight: 11g
Speed: 25km/h
Fun fact: Blue tits are extremely clever — they were once famous for learning to peck through foil milk bottle tops to drink the cream.
Often seen: in the woods around the sauna.

Wingspan: 38cm
Weight: 100g
Speed: 37km/h
Fun fact: Male blackbirds are black with yellow beaks, but females are brown, often mistaken for a different species.
Often seen: on the paths around the res.

Wingspan: 95cm
Weight: 1100g
Speed: 90km/h
Fun fact: Ducklings can swim within hours of hatching and follow mum in single file — a behaviour called "imprinting."
Often seen: at the north end of the reservoir.

Wingspan: 25cm
Weight: 40g
Speed: 40km/h
Fun fact: The kingfisher’s stunning blue is not due to pigment — it’s created by the way light reflects off its feathers.
Often seen: shooting across the reservoir.

Wingspan: 120cm
Weight: 1000g
Speed: 80km/h
Fun fact: They soar in wide circles, often seen riding thermals — using warm air currents to save energy.
Often seen: high up in the sky above the dam.

Wingspan: 100cm
Weight: 500g
Speed: 60km/h
Fun fact: Crows are remarkably intelligent — they can solve puzzles, use tools, and even recognise human faces.
Often seen: around the spillway.
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