Mild astonishment down at my local reservoir. In the heronry there is a nest with chicks grown enough to be exercising their wings! They look to be at least three weeks old, which considering the incubation period of the eggs mean the parent birds mated and laid in mid-to-late January. Can you believe that? Through the heavy snow and ferocious gales we've had since then, that nest, those eggs and the chicks survived it all. Amazing.
Then, there are the other signs that Spring is arriving, like these courting Great Crested Grebe. Immediately after the pair skulked into some reeds, they like to keep the climax to themselves.
Video - Great Crested Grebe Mating