Little Grebes build large nests floating on water that are anchored to plants growing there. They are usually built of rotting plants which is hollowed out to hold the eggs. They lay up to two clutches of eggs a year which consist of 4 to 6 eggs. The eggs vary in colour from grey to blue/white and are often heavily stained from the damp rotting nest. These eggs are inscribed with two different collectors numbers which indicate that they were collected from different nests. From notes accompanying the eggs we know that the egg inscribed with 250 was collected in Iceland in the 1860's and that the eg inscribed with 11 was collected in Norfolk in 1867. Accession numbers Z.00482.001-.003