My Research on Comnmunications
In October 1918, as the war neared its end, 194 American soldiers found themselves trapped by German soldiers. They were cut off from other Allied soldiers and had no working radios. The only chance they had of alerting anybody about their desperate situation was to send a pigeon with their co-ordinates attacked to its leg. The pigeon's name was Cher Ami. When released it flew 25 miles from behind German lines to the Americans headquarters. Cher Ami covered the 25 miles in just 25 minutes. The pigeon was, in fact, shot through the chest by the Germans but continued to fly home. With the "Lost Battalion's" co-ordinates, the Americans launched a rescue and the 194 men were saved. Cher Ami was awarded the Croix de Guerre with Palm for its astonishing flight. As with other pigeons, it would not have known where the American's nearest headquarters was - its natural homing instincts took over.
I got this from- http://www.historylearningsite.co.uk/pigeons_and_world_war_one.htm
This interested me because it shows how pigeons could be used to peoples advantages whereas now we don't really use pigeons for anything which helps us.
Letters were also a great way of communicating during WW1 this was more commonly used by soldiers as a way of communicating with family and friends.