Close up of a colony of ants, hard at work climbing over dry pine needles as they go about their business building a new nest for the winter, Kalmthoutse Heide, Flanders, Belgium

close up ants colony building working nest outdoors nature pine needles active crawling dead decaying foliage ground compost forrest insect community anthill reserve park wilderness woodlands countryside habitat teamwork bug social macro conifers gymnosperms summer army environment wildlife sand gravel dry twigs red netherlands kalmthoutse heide flanders belgium