Cresting a small hill the other day I see a large dark mass across the road. It took me a few seconds to realize exactly what it was – a congregation of Red-winged Blackbirds. There were hundreds, probably thousands, of them there. This image only represents about a third of what was on the road and on each side of it. It was pretty nuts. During the winter these birds will gather like this in these massive flocks, oftentimes segregated by sex. In this case, the majority of these were females (brown colored).