There are five different types of nucleotide bases found in living things. which
is an accurate comparison of the bases found in robins and the bases found
in sparrows?

They have the same bases but in a different order

Explanation:

DNA is the molecule that carries the "recipe" of all living things. People, animals, fruits and even simple cellular organisms, such as plankton in the oceans, carry a sequence of nitrogenous bases (A, C, G, T) wrapped around a double helix. The order of these four letters within the nucleus of cells is different for each organism and defines the development and characteristics of each being - from eye color to whether it will be a bacterium or a person - as well as indicating whether the individual is genetically distant of other species that live on Earth.

For this reason we can say that robins and sparrows have the same bases, but in a different order.