The correct answer is c) Thattekad.
Thattekad Bird Sanctuary is a bird sanctuary located in the Alappuzha district of Kerala, India. It is one of the most important bird sanctuaries in India and is home to over 200 species of birds. The sanctuary is also home to India’s largest butterfly, the Southern Birdwing.
The Southern Birdwing is a large, colorful butterfly that is found in the Western Ghats of India. It is the largest butterfly in India and has a wingspan of up to 12 inches. The Southern Birdwing is a beautiful butterfly with a bright green body and blue wings. It is a popular butterfly with birdwatchers and is often seen in the Thattekad Bird Sanctuary.
The other options are incorrect because:
- Silent Valley National Park is a national park located in the Palakkad district of Kerala, India. It is one of the most important biodiversity hotspots in India and is home to a variety of plants and animals. However, the Southern Birdwing is not found in Silent Valley National Park.
- Periyar National Park is a national park located in the Idukki district of Kerala, India. It is one of the most popular tourist destinations in Kerala and is home to a variety of animals, including tigers, elephants, and leopards. However, the Southern Birdwing is not found in Periyar National Park.
- Eravikulam National Park is a national park located in the Idukki district of Kerala, India. It is one of the most important biodiversity hotspots in India and is home to a variety of plants and animals. However, the Southern Birdwing is not found in Eravikulam National Park.