In many animals, stones are related to diet, and this may be a factor in the development of bladder stones in horses. If the mineral content of the diet is not right for the individual horse, it may be the cause of crystals forming in the urine. The crystals irritate the bladder wall and cause some bleeding.
Collecting Goose Eggs. 1  1. Gather the eggs in the spring. In the Northern Hemisphere, most geese breeds begin laying their eggs in March or April. 2  2. Collect the eggs in the morning. Geese generally lay their eggs in the morning, so you should collect them late in the morning. 3  3. Provide nest boxes.
Blue tits incubate their eggs for two weeks but swans sit on theirs for nearly six weeks! Most birds lay one egg a day until the eggs are all laid. Some birds lay up to 15 eggs but others lay only one.