The RSPB's Big Schools' Birdwatch forms part of this year's Big Garden Birdwatch - the world's biggest wildlife survey.
As the RSPB's birdwatch survey gets underway, here's a guide to how you can spot some of the most common garden birds.
Chiffchaffs have been singing autumn calls, flamingos have laid their eggs late and now hundreds of migratory birds have arrived early.
Children across Wales have been learning how to tell their sparrows from their starlings today as part of the RSPB's biggest wildlife survey.
It marks the start of the charity's Big Schools' Birdwatch, which records the types of birds found in and around school grounds.
Sarah Powell went along to a school in the Vale of Glamorgan to see if she could spot any!
"Seeing it first hand is the single best way to enthuse young people about nature, and by watching birds from their classroom window, they can learn so much" says Tim Wort from RSPB Cymru.
"It's fun, easy and simple to set up, it works for all ages, and even if it's a dull, rainy January day you can still gaze out of the classroom and see a flash of colour."
The Big Schools' Birdwatch helps to track bird numbers in school grounds, and gives the charity an insight into changes in bird populations.
The results contribute towards the annual Big Garden Birdwatch.
Last year's survey found that the most commonly seen garden birds were:
- Black headed gull
- Carrion crow
From today, children in Wales will be taking part in the world's biggest school wildlife survey.
The survey helps to track bird numbers and gives an insight into populations, with the results contributing to the RSPB's Big Garden Birdwatch - the world's biggest wildlife survey.
Last year, over 4,500 pupils and teachers across Wales counted the birds in their school grounds, discovering the Blackbird to be the most commonly seen.
It was followed by the Starling in second place, and the Black Headed Gull in third.
– Bethan Lloyd, RSPB Cymru
We know from the many people who take part in Big Garden Birdwatch every year that garden birds are incredibly precious to us. But, several of our familiar and best-loved species are continuing to decline at alarming rates.
We go to great lengths to ensure that special habitats in Wales are given the right levels of designation and legal protection because of their role in supporting threatened wildlife, but what's very clear is that every one of our gardens, the spaces literally on our doorsteps, are really important too and help connect us all to nature on a daily basis.
Sightings recorded in the survey are as follows:
- House sparrows down by 18 per cent.
- Starlings down by 15 per cent.
- Bullfinches down by 22 per cent.
- Dunnocks down by 5 per cent.
- Siskins up by 50 per cent.
- Long tailed tits up by 66 per cent.
The results of the RSPB's annual Big Garden Birdwatch survey are out and they don't make for positive reading.
In previous years the number of garden birds have declined and this year is no different. The birds we are visited by less and less include starlings, house sparrows and bullfinches.
Both starlings and house sparrows are both 'red-listed' species meaning it is of the highest conservation concern in Wales and across the UK. Bullfinches and dunnocks are both amber-listed.
Almost 30,000 people across Wales, including over 4,500 pupils and teachers at schools, took part in the Birdwatch in January counting almost 500,000 birds between them.
For more details on the numbers of birds surveyed, along with advice on making a home for wildlife in your garden visit the RSPB website here.