sentences:  Despite the outward resemblance to the imperial eagle, the 4 species in the golden eagle subgroup appear to rather more closely related to the dissimilarly smallish and pale-bellied sister species, African hawk eagle ("Aquila spilogaster") and Bonelli's eagle ("Aquila fasicata").The Spanish imperial eagle, which is found in Spain and Portugal, was formerly lumped with this species, the name imperial eagle having been previously used in both circumstances.However, the two are now regarded as separate species due to significant differences in morphology, ecology and molecular characteristics.