Llyn Brenig

Sand Martin

Conservation

Brought to you by Welsh Water

Sand Martins At Llyn Brenig


Sand martins are regular summer visitors to Llyn Brenig, arriving in early spring to breed and departing in late summer.

We have built a sand martin hotel at the water’s edge to support the conservation of these marvellous little birds. Designed to mimic their natural environment, the residence can be seen from Caffi Brenig in the visitor centre and also has cameras installed.

Sand Martin Hotel Live Feed


Large screens in the visitor centre stream live from the Llyn Brenig house martin hotel.

Wildlife-lovers can watch our summer colony in real time as their family dramas and special moments play out across the season.

We’ll also be posting regular updates to our social media channels regularly during the summer.

We hope you enjoy following the day-to-day comings and goings of our sand martins.

Did You Know?


Sand martins are closely related to the better-known house martin. They are one of the first spring migrants to appear, arriving mid-March to mid-April, with late arrivals up until June.

These sociable birds nest in colonies and show a preference for dry, vertical banks of soft soil found in sand pits, gravel pits, railway cuttings, riverbanks and lake cliffs.

Both males and females excavate a horizontal tunnel 50-90 cm long with a chamber at the end. After laying eggs in late May / early June, incubation lasts for about fourteen days. All eggs hatch at the same time. The young fledge at 19-24 days old.

The birds depart from late July to September. Most are thought to winter in the Sahel, south of Sahara.

Sand martins and their nests are protected by the Wildlife and Countryside Act 1981.

Construction Of The Sand Martin Hotel


The sand martin hotel includes fifty separate nest boxes, each designed to resemble a natural burrow.

Perspex sheets have been added to make access by climbing animals more difficult and help reduce the risk of predation. The front face is covered in Sandtex and sand to make it look more like a natural sand bank.

A green roof helps it blend in with the environment (and because we think it looks nicer too!).

Other Conservation Projects


Brenig Osprey Project

Find out more about our stunning summer visitors and how you can observe them sustainably in their natural habitat.

• READ MORE •

Red Squirrel Scheme

Discover how Llyn Brenig is encouraging red squirrels in the area with boxes, bridges, DNA sampling – and pine martens!

• READ MORE •

Conservation Grazing

Learn why you may chance upon grazing highland cattle whilst out walking at Llyn Brenig and what they may contribute to biodiversity.

• READ MORE •

Upcoming Events

27
Apr
Monster Mash (Spring)

Don’t miss this rare opportunity to cast your line in the exclusion zone surrounding the fish farm…

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4-3
May   Aug
Fish Farm Tours

Meet our dedicated fish farmers and gain insight into the nurturing of our stock of rainbow and brown trout.

• READ MORE •
28
Jul
Llyn Brenig Open

Join us for an exhilarating day of fly-fishing to showcase your skills in our prestigious singles competition.

• READ MORE •
28
Sep
Monster Mash (Autumn)

Don’t miss this rare opportunity to cast your line in the exclusion zone surrounding the fish farm…

• READ MORE •
16-22
Mar   Dec
Tagged Fish Competition

Find a tag and you could hook yourself a whopping £1000 in our Tagged Fish Competition.

• READ MORE •

OTHER WELSH WATER ADVENTURES

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