"Spring Snowstorm"Photograph by Keith Williams, HBW/Rex
Tree swallows huddle through a spring snowstorm in Canada's Yukon Territory during their southward migration.
"It's nice to show them together, protecting themselves," del Hoyo said of Keith Williams's picture. "It's like, We have come here to breed, but no good—we have to wait."
Tree swallows huddle through a spring snowstorm in Canada's Yukon Territory during their southward migration.
"It's nice to show them together, protecting themselves," del Hoyo said of Keith Williams's picture. "It's like, We have come here to breed, but no good—we have to wait."