Low Flying Birds:
Sparrows are known for flying at low heights, making them the correct answer. Let's explore why sparrows fly at low heights and why the other options are not suitable.

Sparrow:
Sparrows are small birds that are commonly found in urban and rural areas. They are known for their ability to fly at low heights, often close to the ground or buildings. There are several reasons why sparrows prefer to fly at low heights:

1. Search for Food: Sparrows primarily feed on seeds, insects, and small fruits. By flying close to the ground, they can easily spot and capture their prey, such as insects or fallen seeds.

2. Protection from Predators: Flying at low heights provides sparrows with better protection against predators. By staying closer to objects like trees, bushes, and buildings, they can quickly seek cover and escape from potential threats.

3. Navigation: Sparrows use landmarks to navigate and find their way back to their nests. By flying at low heights, they can easily recognize familiar objects and landmarks, ensuring they don't get lost.

4. Mating Display: During the breeding season, male sparrows often perform elaborate flight displays to attract females. These displays involve flying at low heights and performing acrobatic maneuvers to showcase their fitness and attract a mate.

Other Options:
Let's briefly discuss why the other options are not the correct answers:

- Hen: Hens are domesticated birds and do not possess the same flying capabilities as sparrows. They are not known for flying at low heights.

- Eagle: Eagles are large birds of prey known for their impressive aerial abilities. They are capable of soaring at great heights and hunting from above. Eagles are not known for flying at low heights.

- Penguin: Penguins are flightless birds that primarily thrive in aquatic environments. They are excellent swimmers but cannot fly at all, let alone at low heights.

Therefore, based on their natural behavior and characteristics, sparrows are the most suitable answer as they are known for flying at low heights.

Sparrow