The first Swallow of the year was seen in Killarney on Easter Sunday, whilst Sand Martins are now back in numbers where they nest in sandy riverbanks and similar places. The first Cuckoo was also heard several weeks ago. Antler-less stags often feel vulnerable and will be much more secretive than at other times of the year, sometimes flattening the ears and lowering the head submissively when feeling threatened. Red Deer are currently calving, and Park Staff and volunteers are taking part in an ongoing tagging programme, the aims of which are to assist in the estimation of population size and to ascertain the home range and movements of the herd. Still summer evenings bring out a wide variety of moth species, which can easily be captured using a special trap with an extremely bright electric mercury bulb, and identified at close quarters.
Some species display stunning camouflage patterns.