On a fallen world that has firearms and combustible fuels. Society is still advanced in a way, but is more tribal/feudal in nature. One nation has an armed order called the Iron Guard that protects the nation’s borders with deadly firepower and brutal force. But they were more defensive then offensive and really slow in movement (there wearing big heavy iron amour). If an attacking force sneaks past them it would be hard for the Iron Guard to pursue the enemy, so the Iron Rangers were founded. The Iron Rangers unlike their name had little in the way of iron amour only a mask and a iron breastplate, but made up for it with cunning and skill. The Iron Rangers are used as scouts, saboteurs, and all around man-hunters. The recruits are from all over the nation but most of them are from Redstone. The reason for this is that the hardy people of Redstone have pet Crows that they use to hunt other people with.
The Crows Info:
The Redstone Crows have been trained in a way that makes them seek out other humans. When the Crow spots a person and or group they will start to sway side to side in a pattern that when a Ranger sees will know that there are people that way (helps the Crow from not getting shot also). Even if the Ranger doesn't see this when the crow comes back it will be agitated and very vocal, a clear sign that the way it came has danger. If the Crow doesn't come back at all, it is also a "very clear sign" that there are people in the area... that are well armed and good shots. The crow will not react to other Iron Rangers and Iron Guard in the area because of the masks that they wear (turns out crows are very good with faces and can tell friend or foe).
The Question: Could Crows be used for Recon
Would love to see if this could work and if there are any drawbacks in using Crows for recon. As always, if you want any more detail don't hesitate to ask.