well it would matter what the hawk had ate if a hawk ate a snake he would gain energy from eating the snake but also other things that the pray ate so i wold say its grass.
The direct source of energy for bird is the Wind Energy .
any food source
The sun.
The Sun!
the sun
Living things or plants
A secondary
The original source of energy for hydroelectricity is water.
The original source of energy for hydroelectricity is water.
The original source of energy for hydroelectricity is water.
The original source of the energy in any combustible plant material is from the sun.
the original source of energy for both coal and wind is the sun.
The SUN!
Assuming you mean the source of energy, the original source of all energy for life on this planet is the sun.
The Sun
ATP
The sun
Oil
The Sun.