A new law has been passed in Scotland which means that every new house built in the country will have to have a swift brick in them.
A swift brick looks a bit like a normal brick, but it’s hollow inside to allow birds – like swifts – to nest in them.
According to charity RSPB (The Royal Society for the Protection of Birds) the number of swifts in the UK has fallen by around 66% over the last 25 years.
Conservationists say this is because of a lack of bugs to eat and places to nest.
Swifts normally like to nest in little holes under the roofs of people’s houses, and once they find a cosy nest, they will return to the same place every year.
Scottish MPs hope that the new rules will help give the birds a boost.
