Whooping crane recovery effort hampered by nesting issues

[Donna]

http://host.madison.com/wsj/news/local/environment/article_c569e3e8-bf8f-11e0-b617-001cc4c03286.html

BARABOO — When the effort to restore a second North American flock of migrating whooping cranes started in 2000, nobody could foresee that something as tiny as a black fly could disrupt reintroduction of the large, endangered birds.