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.
The world's smallest species of parrot, the buff-faced pygmy parrot, is found in the forests of Papua New Guinea. To capture this little bird in action is a waiting game for cameraman Gordon Buchanan. Smaller than some of the insects which live in these forests, the pygmy parrots are barely larger than Gordon's thumb.