I don't suppose it made their day!
Lots of croaking and general flapping - so probably chased them off a nest... though I was on the path at the time :-)
Usually very trusting and placid things.
I had one really properly chase me on bynack more around this time of year. Admittedly was well off path and must have got between it and chick or nest but I basically had to use my best netball dodge and sprint to get away from it. Just a little caper at heart.
Saw two on Bynack More just a couple of weeks ago