In the north of the Netherlands near the village of Grijpskerk (province Groningen), some uncommon nests have been found during the last few years: 1. 1976: Nest of a Wren Troglodytus troglodytus inside the nest of a Swallow Hirundo rustica. The nest contained no eggs. 2. 1972: Nest of a Wood Pigeon Columba palumbus made from small pieces of iron fence wire. 3. 1975: Nest of a Black-tailed Godwit Limosa limosa limosa in a pasture in a small pit in the ground. All four eggs were hatched. The pit (depth 8 cm) was probably made by a Hare (Lepus capensis). 4.1974: Nest of a Moorhen Gallinula chloropus containing five eggs. One egg was larger than the others, having two yolks which were both fertilized. 5. 1984: Nest of a Jackdaw Corvus monedula built between several branches of a lime-tree (Tilia cordata). Six young were successfully raised. W.T. Oostenbrink, Monseigneur Van de Weteringstraat 37, 3581 EB Utrecht.