Activation energy is the amount of energy required to initiate a chemical reaction. The activation energy can be determined from reaction rate constants at different temperatures by the equation. ln(k 2 /k 1) = E a /R x (1/T 1 - 1/T 2).
Robins eat different types of food depending not only on the time of year, but even time of day. They eat earthworms early in the day and more fruit later in the day. Because they forage largely on lawns, they are vulnerable to pesticide poisoning and can be an important indicator of chemical pollution.
Common Buzzard Diet. Common Buzzards feed mainly on Rabbits but will take just about any small mammal, reptile and often carrion (the carcass of a dead animal). The birds can occasionally be seen standing proudly on a piece of road kill defending it whilst they eat.