| This is a disambiguation page. A number of articles are associated with the title Brain-fever Bird. NOTE: If an internal link referred you to this page, you may wish to change the link to point directly to the intended article.
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Brain-fever Bird may refer to one of the following two species:
- Large Hawk-Cuckoo - Hierococcyx sparverioides
- Common Hawk-Cuckoo - Hierococcyx varius
