Can you suggest names for both male/female scarlet macaws?

You could add any old name you can think of together that sound good like Charlie and Ella or Audrey and Wilbur, You could give them names that relate to the colour red somhow like Rose and Romeo (rose as in red roses and romeo as in love which is often symbolized with red), or you can be hilarious and give them an old couple name like Agnes and John or Mavis and Stanley. I hope this helps