School groups, charter tours, or other groups of 15 or more must reserve Lincoln Home tours in advance by contacting the Springfield Convention and Visitors Bureau as soon as possible. School groups planning to visit in April, May or October should schedule approximately 6 months in advance.
Secondary consumers include reptiles, carnivores, small predators and insectivores. Animals at this level include different frog species, small snakes, large insects and birds of prey like eagles and vultures. Tertiary consumers include large snakes like the boa constrictor, and jaguar. Other large animals such as the Indian elephant or African forest elephant, gorillas or orangutans, and tapirs tend to feed on vines, fruits, or insects.
There are three levels of consumers in an ecological food chain: primary, secondary and tertiary consumers. Primary consumers are also known as herbivores and only eat plants and fruits. Secondary consumers eat primary consumers and are known as carnivores. Tertiary consumers eat secondary and primary consumers and are also known as carnivores. Consumers known as omnivores eat both plants and animals and can be either secondary or tertiary consumers.