Scientific American has a nice post and slideshow about ten endangered animals that may go extinct in the next 10 years. They all are found outside of the US (except for the leatherback turtle that occasionally enters US waters) and so the Endangered Species Act does relatively little to help them. Still it might indicate something about the ESA that no domestic species is shown.
It might indicate something else about the ESA and about the slideshow that the animals are charismatic megafauna. Species that are less charismatic, like endangered mussel species, have done less well, because they get less attention.