GENEVA An Ethiopian lark, a Galapagos finch and a spectacularly colored hummingbird only recently discovered in Colombia have been added to the list of the world's most threatened species, an environmental group said Thursday. The International Union for Conservation of Nature _ the producer each year of a Red List of endangered species _ said the Sidamo lark could soon become Africa's first known bird extinction as the Ethiopian savanna becomes overgrown by bush, farmland and overgrazing.
"This is a species that is absolutely on the edge," said Martin Fowlie, spokesman for the Britain-based BirdLife International, whose monitoring determines which birds are included on the list.