Here is a list of mythical creatures beginning with this letter and I am constantly gathering information from each continent and continually updating.
Anqa (Arabian)
Anqa also spelled 'Anqa' , or Anka, or Anqa Mughrib or Anqa al-Mughrib is a large mysterious or fabulous female bird in Arabian mythology. She is said to fly far away and only appear once in ages. However, it is also said that she can be found at "the place of the setting of the sun".
The anqa was described as "very beautiful and colorful with a long neck, human face, four pairs of wings, and some resemblance with every living being" and a "whiteness" in its neck. The anqa is frequently identified (to the point of becoming synonymous) with the simurgh of Persian mythology along with the Armenian and Byzantine eagles and the Turkic Konrul, also called semrük, probably due to the sphere of influence of the Persian Empire.