In terms of Comms, I'm at a loss for specifics.

It could be that a whistleblower/leaker type messenger isn't following their orders.

Sounds like the "bird watchers" are being sent out to go hunt for them.

Personally, it sounds like a Celebrity has flown the nest and they are desperately trying to wrangle them back in.

Taking a look at the "fly west" has me thinking someone may have approached Kanye West with information in exchange for protection.

Hm...

Hope it finds a friend.

Of course they gotta make it about muh Climate Change:

“Climate change is happening. Patterns are changing. We don't know how this bird got here,” he said. “I will say this is — up until this point — a unique event. And that is why I think it caused so much interest and excitement for birders here.”

Alliteration on the triple M word stands out. 13th letter might be to reinforce the "climate" change mentioned in the article.

More with Willow Warbler. 23rd letter matches the 23rd of October, and hints the bird watchers may have met in a grand jury courtroom.

Now I'll go way, way out there. The pictured bird resembles a plain plover. It looks nothing like a grey-green plover, but interesting, a green plover is known as a lapwing. LAPtop is on the wing? Shows up in court for some singing? Too much?

Full polar cap reversal. Cataclysmic event happens every once in a while. New civilization Sell my bitcoin when you re-evolve