Warm-blooded creatures, like mammals and birds, try to keep the inside of their bodies at a constant temperature. They do this by generating their own heat when they are in a cooler environment, and by cooling themselves when they are in a hotter environment. To generate heat, warm-blooded animals convert the food that they eat into energy. They have to eat a lot of food, compared with cold-blooded animals, to maintain a constant body temperature. Only a small amount of the food that a warm-blooded animal eats is converted into body mass. The rest is used to fuel a constant body temperature.
Organisms get the energy they need from food just like us humans do.
Swamp ... Hope this helps :)
If the bird eats a small insect that ate the seeds and is a Secondary consumer, then it was relying on another organism for food. Where as the Primary consumer eats what grows and doesn't really on another organism for food. So the answer would be Primary Consumer.