Are Mockingbirds running extinct

There are about 17 species of mockingbirds. 13 of these are ranked by IUCR as "Least Concern" (IUCR-speak for "there's tons of 'em"). The ones which are not are the Socorro Mockingbird (Critically Endangered), the Hood Mockingbird (Vulnerable), the Floreana or Charles Mockingbird (Critically Endangered), and the San Cristobal Mockingbird (Endangered).