Children across Wales are taking part in the RSPB's Big Schools' Birdwatch. It's a survey that helps to track bird numbers and gives an insight into bird populations.
"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."