Well we've used pigeons fr missile guidance before [0], and for messaging [1], so birds have a firm place in the military including having their own special units [2]

More generally, the history of warfare is all about taking the enemy's resources and using them as weapons against the foe. This will be a defining feature of future cyberwar and AI - everything we build to "protect ourselves" will at some point be repurposed to advantage an enemy.

[0] https://en.wikipedia.org/wiki/Project_Pigeon

[1] https://en.wikipedia.org/wiki/War_pigeon

[2] https://warfarehistorynetwork.com/article/warfares-unsung-pi...