natural monochrome

Today Paige Baicer posted about how photographs of natural scenery (often in winter) sometimes turn out almost black and white, with hardly any color in them.

I browsed through my recent work and found these examples of almost monochrome scenes

The only color here is provided by the beaks and legs of the seagulls standing on the grey ice waiting for who knows what....

This was taken on another day, with a more purple/pink shine in the air. There is only a faint brownish coloring in the chunk of ice covering the dark branches

Taken the same day, here the color is almost completely gone, faded to a soft pinkish grey veil covering the frozen lake.