Macaw
Macaws are long-tailed, often colourful New World parrots.
Biology
Of the many different Psittacidae (true parrots) genera, six are classified as macaws: Ara, Anodorhynchus, Cyanopsitta, Primolius, Orthopsittaca, and Diopsittaca. Previously, the members of the genus Primolius were placed in Propyrrhura, but the former is correct in accordance with ICZN rules. Macaws are native to Central America and North America (only México), South America, and formerly the Caribbean. Most species are associated with forests, especially rainforests, but others prefer woodland or savannah-like habitats.
Proportionately larger beaks, long tails, and relatively bare, light-coloured, medial (facial patch) areas distinguish macaws from other parrots. Sometimes the facial patch is smaller in some species, and limited to a yellow patch around the eyes and a second patch near the base of the beak in the members of the genus Anodorhynchus. A macaw's facial feather pattern is as unique as a fingerprint.
The largest macaws are the hyacinth, Buffon's (great green) and green-winged macaws. While still relatively large, macaws of the genera Cyanopsitta, Orthopsittaca and Primolius are significantly smaller than the members of Anodorhynchus and Ara. The smallest member of the family, the red-shouldered macaw, is no larger than some parakeets of the genus Aratinga.
Macaw (disambiguation)
Macaw can refer to:
See also
Multiple Access with Collision Avoidance for Wireless
Multiple Access with Collision Avoidance for Wireless (MACAW) is a slotted Medium Access Control (MAC) protocol widely used in ad hoc networks. Furthermore, it is the foundation of many other MAC protocols used in Wireless Sensor Networks (WSN). The IEEE 802.11 RTS/CTS mechanism is adopted from this protocol. It uses RTS-CTS-DS-DATA-ACK frame sequence for transferring data, sometimes preceded by an RTS-RRTS frame sequence, in view to provide solution to the hidden terminal problem. Although protocols based on MACAW, such as S-MAC, use carrier sense in addition to the RTS/CTS mechanism, MACAW does not make use of carrier sense.
Principles of operation
Assume that node A has data to transfer to node B.
Node A initiates the process by sending a Request to Send frame (RTS) to node B. The destination node (node B) replies with a Clear To Send frame (CTS). After receiving CTS, node A sends data. After successful reception, node B replies with an acknowledgement frame (ACK). If node A has to send more than one data fragment, it has to wait a random time after each successful data transfer and compete with adjacent nodes for the medium using the RTS/CTS mechanism.
Podcasts:
Macaw
ALBUMS
- The Wire Tapper 24 released: 2010
The Wire Tapper 24
Released 2010- Dressed in Blue
- Unbound
- Elevations and Depths
- Equivalency of Dissimilarity Denotation (Track 2) (edit)
- Prism VI
- Raise Your Voice
- Untitled Landscape
- Rest in Pieces
- The Desert Song
- Xiriah
- A Way With Words
- Broken Circles Live
- Vessel (Black Out edit)
- Obscura
- Five Minutes at the Rainforest Cafe
- #A85400
- Solitary Bonze Prayer
- Analclaire
- Cranberry Sauce
- Sodium Haze
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