My contribution to the A Photo a Week Challenge is two photos this week. The prompt is Babies which got me thinking about bird species with young.
That made me think of two very different species that nest in tree cavities and will also use nest boxes.
This is a Common Merganser, a larger species of duck that needs a large tree cavity or nestbox. As soon as the eggs hatch the female carries the young to the water in her bill.
These are Eurasian Blue Tits. There are two adults feeding recently hatched young in a nestbox. Unlike the Common Merganser these young are born naked. It will be approximately 21 days before they have grown flight feathers and can leave the nestbox.