Generally, large birds and seabirds live longer than small birds. Albatrosses live so long that it is hard to calculate their survival rates - they can live longer than the metal rings that identify them, and probably longer than most humans.
Food chain. Definition. A feeding hierarchy in which organisms in an ecosystem are grouped into trophic (nutritional) levels and are shown in a succession to represent the flow of food energy and the feeding relationships between them. Supplement.
Food Chains: A food chain is line of specific organisms eating each other. Example: grass eaten by grasshopper, grasshopper eaten by rat, rat eaten by snake, snake eaten by hawk.Food Web:multiple food chains in a web form.Example:leaf eaten by squirrel, fish eaten by seal and eats seaweed,cow eaten by lion and eats grass,snake eaten by hawk and eats rabbit,grasshopper eaten by frog and eats grass.