The Spanish imperial eagle (Aquila adalberti), also known as the Iberian imperial eagle, Spanish eagle, or Adalbert's eagle, is a threatened species of eagle native to the Iberian Peninsula. The binomial commemorates Prince Adalbert of Bavaria. It is also the national bird of Spain. Formerly, the Spanish imperial eagle was considered to be a subspecies of the eastern imperial eagle, but is now widely recognised as a separate species due to differences in morphology, ecology, and molecular characteristics. This is a large raptor and fairly large eagle, broadly similar in size to its cousin, the eastern imperial eagle, which is found in a considerably different distributional range. Compared to sympatric largish booted eagles, it is somewhat smaller than the golden eagle and somewhat larger than the Bonelli's eagle.
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