I went for a walk up Cwm Dulais (the northward `arm` of Stradey Woods, Llanelli) this afternoon (5/11/14), to clean out a couple of nest-boxes and noticed a group of this yellow puffball (?) under a sweet chestnut at SN488022. At first, from a distance, they looked like fallen crab apples and - as I approached and as a bonus - I spotted a woodcock sitting right next to them. Within a split second, up flew the woodcock, leaving this fungus for me to look at. Any idea regarding its identity?