Yellow Bellies and Blue Caps

This Blue Tit was posing beautifully, showing off that iconic yellow belly and blue cap. Speaking of that cap - did you know that to other birds, the blue on their head actually glows under UV light? We can’t see it, but it’s how they signal their health and attractiveness to potential mates. It’s amazing to think there’s a whole hidden spectrum of colour right in front of us that we’re missing out on!