What organism belongs to more than one trophic level

A trophic level pertains to the position of an organism in the food chain. Humans are  the mos dominant organism that belong to more than one trophic level. When we eat plants we become the primary consumers but when we eat meat we can become the secondary or the tertiary consumers.

Birds are also organisms that belong to more than one trophic level. When birds eat seeds they become the primary consumer, but when they eat insects they become the secondary or even the tertiary consumers. 

The answer is constant.