What type of food do house sparrows primarily prefer?

House sparrows primarily prefer grains and seeds as their main food source. This preference stems from their natural habitats and dietary habits, which have evolved to utilize readily available resources. Grains such as wheat, corn, and oats are particularly favored as they are abundant in agricultural settings where these birds are commonly found. Seeds from various plants also contribute to their diet, providing essential nutrients.

While house sparrows will consume insects during certain life stages, especially when feeding their young, their overall diet is not exclusively insectivorous. They may also partake in fruits and vegetables, but this is not the primary component of their diet. Grains and seeds form the foundation of their nutritional intake, making this the most accurate answer choice.