Wildlife Spotting

the biggest was about 5mm across. As you can see on 4th photo, the powdery top of the mushroom brushes off easily. The stem and the whole mushroom was very fragile. Growing indoors in a Geranium plant pot. geranium seedling was 'incubated' in a warm, moist 'greenhouse' for a couple of weeks. They were moved out and onto the windowsill were it is a bit cooler and probably less moist. Maybe after 3-4 weeks these mini mushrooms started to sprout! I've found a similar one growing on a cow pat once and I think also a similar one started sprouting when I brought home a jar of horse manure...!