The short answer is, "NO". they are considered 2nd level consumers.
First level consumers are animals such as Mice, who feed on plants, plant-based, etc..
Since a Rattlesnake would eat a mouse, it would be considered 2nd level.
An example of a 3rd level consumer would be a hawk, or some other bird of prey, eating the snake.
a third level consumer or second level carnivore
The second level consumer would be away from. The hawk would have more arows because it is the most eater.
First of all, a second level consumer is a living thing that eats things that eat producers (plants, etc.). So, if a producer is grass, say, then the consumer would be sheep. Then, wolves eat sheep (or so they say). A wolf would then be a second level consumer because it eats thing that eat producers. Another example would be carnivorous fish. Mosquito fish eat duckweed, and bigger, carnivorous fish eat the mosquito fish. The big, carnivorous fish would be the second level consumer. A snake could be a second level consumer because it is a carnivore eating a herbivore. Herbivores are first level consumers. Cats, dogs, and humans can also be second level consumers.
It is a third level consumer.
A Highest order consumer is the top of the food chain. They are eaten by nothing and eat everything .
Mice are categorized as primary consumers because they eat primary producers such as seeds.
A snake is a consumer.
A snake is a consumer.
A snake is a consumer.
A sea snake is a consumer.
A Snake is a Secondary Consumer
A sea snake is a consumer.