When it had gone I checked the place and, yes, black ants running around all over the place.
The formic acid acts as an insecticide/bactericide/whatevericide, which is very useful if you're a magpie

I truly hope not Jack, but knowing them I wouldn't be surprised if they are spying and looking for the nests to raidJacksparrow wrote: ↑Mon Apr 06, 2020 7:53 pmA pair of magpies appear to have adopted my garden as home territory. When I am in the chateau garden and hear little mewing noises and look around for the source I see one of them if not both. Other smaller birds are currently brooding eggs or feeding nestlings so I hope they(the magpies) are not going to be raiding the nests![]()