When you hear enough about the plight of endangered animals, you start to notice some themes in how they came to be that way.
For some, the issue is that they're the target of widespread poaching for certain parts that are either used in traditional remedies or as status symbols. For others, the problem is more indirect and concerns extensive habitat loss from logging and mining operations.
But while conversations face an uphill battle when there are clear forces threatening an animal population, it's even more concerning when there's a legitimate mystery behind what's happening to them.
Unfortunately, that seems to be the exact problem that birds in New Mexico are experiencing right now.
Be advised that this article contains images that may be disturbing to some readers.