Alert

There is a flock of helmeted guinea fowls in our village.
When you pass them with a dog they start to alert and their sound causes pain in your ears. It must be really bad for the dogs, too. 
This fowl was sitting on the roof of the cage and was not happy when I returened for a blip after I passed quickly. He (or she) alerted the rest of the flock and hell broke loose again :-D
Here you can hear a sample of their alarm