Chain Y Wheel Circle All-Channel Figure 1. Common communication networks. The wheel network, a two-level hierarchy, is the most structured and centralized of the patterns because each member can communicate with only one other person.
Read on to learn more about some of the different types of large birds that are commonly kept in captivity, and discover what it's like to share a home with these magnificent creatures. 1  of 05. Cockatoos. 2  of 05. Eclectus Parrots. 3  of 05. African Grey Parrots.  of 05. Amazon 1  Parrots. of 05. Macaws.  Large Bird Breeds.
Size. Because the parrot order includes so many different species, parrot sizes vary widely. Parrots can range in size from about 3.5 to 40 inches (8.7 to 100 centimeters) and weigh 2.25 to 56 ounces (64 g to 1.6 kg), on average. The world's heaviest type of parrot is the kakapo, which can weigh up to 9 lbs. (4 kg).