CAS CAS Species Identification & Classification 2 — Questions and Answers
Question 1: Which species is the largest parrot in the world by length?
- Blue-and-yellow Macaw
- Hyacinth Macaw (Correct answer)
- Palm Cockatoo
- Kakapo
Correct answer: Hyacinth Macaw
The Hyacinth Macaw (Anodorhynchus hyacinthinus) is the longest parrot species, reaching up to 100 cm (39 inches) in total length.
Question 2: What is the key distinguishing characteristic of lories and lorikeets compared to other parrots?
- They are flightless
- They have a specialized brush-tipped tongue for consuming nectar and pollen (Correct answer)
- They lack a hooked bill
- They have fully webbed feet
Correct answer: They have a specialized brush-tipped tongue for consuming nectar and pollen
Lories and lorikeets have a unique brush-tipped tongue adapted for feeding on nectar and pollen, and their diet differs significantly from seed-eating parrots.
Question 3: The Eclectus parrot (Eclectus roratus) is notable because males and females look dramatically different. What color is the male?
- Blue with yellow wing tips
- Bright red with blue and yellow markings
- Bright green with red and blue markings (Correct answer)
- Gray with white crest
Correct answer: Bright green with red and blue markings
Male Eclectus parrots are predominantly bright green with red and blue markings, while females are red and blue — a striking example of sexual dimorphism.
Question 4: Which of the following correctly classifies the cockatiel (Nymphicus hollandicus)?
- A member of the family Psittacidae (true parrots)
- A member of the family Cacatuidae (cockatoos) (Correct answer)
- A member of the family Strigidae (owls)
- A member of the family Ramphastidae (toucans)
Correct answer: A member of the family Cacatuidae (cockatoos)
Cockatiels are classified in the family Cacatuidae, making them the smallest member of the cockatoo family, distinguished by their erectile crest.
Question 5: What does the term 'dimorphic' mean in avian species identification?
- Species that can change feather color seasonally
- Species in which males and females have visibly different appearances (Correct answer)
- Species that have two distinct subspecies
- Species capable of mimicking two or more sounds
Correct answer: Species in which males and females have visibly different appearances
Dimorphic species exhibit sexual dimorphism, where males and females have distinctly different physical appearances, such as coloration or size.
Question 6: The Kakapo (Strigops habroptilus) of New Zealand is unique among parrots for which reason?
- It is the only venomous parrot
- It is the only completely flightless parrot (Correct answer)
- It is the only parrot that migrates annually
- It is the only parrot without a hooked bill
Correct answer: It is the only completely flightless parrot
The Kakapo is the world's only flightless parrot; it is also the heaviest parrot and is critically endangered with a managed conservation program.
CAS CAS Species Identification & Classification 2
Which species is the largest parrot in the world by length?