The first postage stamps were issued in 1840, and the geography of the world has since seen lots of changes. Some of the most interesting collectible stamps are those issued by states that no longer exist â these states are known as âdead countriesâ by philatelists.
Eggs are off-white and marked with brown and lavender. Young turkey vultures hatch in 30 to 40 days and then take another 9 to 10 weeks to learn how to fly. They are are independent about a week later.ggs are off-white and marked with brown and lavender. Young turkey vultures hatch in 30 to 40 days and then take another 9 to 10 weeks to learn how to fly. They are are independent about a week later.
In February to April, females lay 1-3 eggs with an incubation period of 28 to 40 days. Black Vultures are thought to mate for life, whereas Turkey Vultures form established pairs only to raise young during the breeding season.Vultures are migratory, social birds that form large communal roosts.wo species of vulture can be observed in Fairfax County: Black vultures (Coragyps atratus) and Turkey vultures (Cathartes aura). Black vultures are 22 to 27 inches long with a 4.5 to 5 foot wingspan, and weigh 4 to 5 lbs.