As soon as you arrive at Iona Beach Regional Park at this time of year, your ears tell you there's an unusual bird around. From the cat-tail and bulrush marshes you can hear the clucks, brays and squeaky-hinge calls of the Yellow-headed Blackbird.
This is a bird of the central plains of North America, and, in British Columbia, is a locally common summer visitant in the South and Central Interior. It typically breeds in colonies, which can contain up to several hundred nests.
Here the yellow-heads share space with the ubiquitous Red-winged Blackbird. This one, giving me the eye, is perched on Scotch broom, lamentably also ubiquitous; it's a vigorously invasive shrub. The billows of yellow behind the bird in the third picture are masses of Scotch broom on the far side of the marsh.