they date from the Middle Ages or earlier. My favorites so are are an ostentation of peacocks and an exaltation of larks. In any case, I was walking along the Tuolumne River in my home village this morning and saw a descent of Acorn Woodpeckers (Melanerpes formicivorus). They made themselves known long before I could see them, causing a racket in the branches above. The lighting was a challenge with the sun behind them. I've had to work with the saturation and contrast to get them visible in these photos.