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Ara ararauna
blue-and-yellow macaw


By Kristina Catania

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Aves
Order: Psittaciformes
Family: Psittacidae
Genus: Ara
Species: Ara ararauna

Geographic Range

Ara ararauna (blue-and-yellow macaws) can be found throughout subtropical and tropical forests, woodlands, and savannas in South America from Venezuela to Brazil, Bolivia, Colombia and Paraguay. Blue-and-yellow macaws are also found in Mexico and are restricted to Panama in Central America. (Juniper, 1998)

Biogeographic Regions
nearctic (Native ); neotropical (Native )

Habitat

Blue-and-yellow macaws are found mainly in rainforests in swampy and riparian areas. They nest high in trees to avoid predation. (Juniper, 1998)

Habitat Regions
tropical ; terrestrial

Terrestrial Biomes
rainforest

Wetlands
swamp

Other Habitat Features
riparian

Physical Description

Range mass
900 to 1814 g
(31.72 to 63.93 oz)

Range length
81.28 to 91.44 cm
(32.00 to 36.00 in)

Range wingspan
104.14 to 114.3 cm
(41.00 to 45.00 in)

Blue-and-yellow macaws are from 81 to 91.5 cm long, weigh from 0.9 to 1.8 kg, and have a wing span of 104 to 114 cm. They are vibrantly colored, with blue on their backs and wings, yellow under parts, green forehead feathers, and green tips on the end of their wings. Their under-wing coverts and breast are yellow-orange and they have black beaks, throat, and legs. Their eyes are yellow and their facial area consists of bare white skin with several black feather lines around their eyes. (Low, 1983)

Other Physical Features
endothermic ; homoiothermic; bilateral symmetry

Sexual Dimorphism
sexes alike

Reproduction

Blue-and-yellow macaws form monogamous pairs that mate for life. (Juniper, 1998)

Mating System
monogamous

Breeding interval
Blue-and-yellow macaws breed every 1 to 2 years.

Breeding season
Blue-and-yellow macaws breed from January through July.

Range eggs per season
2 to 3

Range time to hatching
24 to 28 days

Range time to independence
10 (low) days

Range age at sexual or reproductive maturity (female)
3 to 4 years

Range age at sexual or reproductive maturity (male)
3 to 4 years

Blue-and-yellow macaws reach sexual maturity at 3 to 4 years of age. Their breeding season is during the first half of the year and they breed about every 1 to 2 years. Nests are found high up in tall trees, mainly in cavities already made by other animals. Females lay 2 to 3 eggs and incubate them for 24 to 28 days, after which the young hatch blind and featherless. After 10 days the young begin to develop feathers. Within 3 months fledglings become independent.

Key Reproductive Features
seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate)

Blue-and-yellow macaw males and females care for their young through providing for them and protecting them. During their first week after hatching, only the female will feed the young through regurgitation, afterwards the male will also feed the young. Both parents show extreme aggression towards intruders in order to protect their young.

Parental Investment
altricial ; male parental care ; female parental care ; pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Male, Female); pre-weaning/fledging (Provisioning: Male, Female, Protecting: Male, Female); pre-independence (Provisioning: Male, Female, Protecting: Male, Female)

Lifespan/Longevity

Typical lifespan
Status: wild

30 to 35 years

Typical lifespan
Status: captivity

30 to 35 years

The life span of blue-and-yellow macaws in the wild can be up to 50 years while their breeding age ranges from 30 to 35 years. They can also live up to 50 years in captivity. (Low, 1983)

Behavior

Blue-and-yellow macaws are mainly found in pairs but can congregate in groups to form flocks. When in pairs, they fly close together with their wings almost touching. When foraging they may join small, noisy flocks during the early morning, by midday they begin to search for shade. Blue-and-yellow macaws are extremely wary, at any sign of danger they fly into the air screeching loudly. (Juniper, 1998)

Key Behaviors
arboreal ; flies; diurnal ; sedentary ; social

Home Range

Home range sizes are not reported. (Juniper, 1998)

Communication and Perception

Blue-and-yellow macaws communicate by loud vocalizations or flock calls. They also have highly developed visual acuity. They have very complex social behavior and vocalizations, as do all macaws. (Low, 1983)

Communication Channels
visual ; tactile ; acoustic

Food Habits

Blue-and-yellow macaws mainly eat seeds, nuts, and fruits. They use their strong beaks to break open nut shells and to crush seeds. In some cases, they consume clay found at riverbanks which allows them to digest the toxins from unripe seeds that they may have ingested. (Ragusa-Netto, 2006)

Primary Diet
herbivore (Frugivore , Granivore )

Plant Foods
seeds, grains, and nuts; fruit

Predation

Known Predators


Known predators include harpy eagles (Harpia harpyja), hawk eagles (Nisaetus cirrhatus) and orange-breasted falcons (Falco deiroleucus) that attack while the birds are in flight. Humans are also predators because they hunt these birds for the pet trade, food, and feathers. ("Bird Life International. IUCN Red List of Threatened Species.", 2010; Low, 1983)

Ecosystem Roles

Blue-and-yellow macaws are important seed predators in tropical forests, they may influence forest dynamics through seed predation and dispersal.

Economic Importance for Humans: Positive

Blue-and-yellow macaws are popular as pets because they are beautiful, behaviorally complex, and have the ability to mimic words and sounds. They are intelligent, social animals who are great companions and become close to their owners, if handled well. (Juniper, 1998)

Positive Impacts
pet trade ; body parts are source of valuable material; ecotourism

Economic Importance for Humans: Negative

Although these birds are rewarding companions, their large size, behavioral complexity, and longevity requires a large home and extensive commitment. Their removal from native habitats also often results in deaths of parents in order to obtain fledglings and destruction of important nesting trees. The illegal pet trade results in much destruction. (Juniper, 1998)

Negative Impacts
household pest

Conservation Status

IUCN Red List of Threatened Species [Link]
Least Concern
More Information

US Migratory Bird Act [Link]
No special status

US Federal List [Link]
No special status

CITES [Link]
Appendix II

State of Michigan List [Link]
No special status

Ara ararauna is considered least concern by the IUCN due to their large geographic range. The population trend is declining but not enough to reach vulnerable status. Populations are considered greater than 10,000 adult macaws and a decline of less than 10% over the past 10 years is evident. Ara ararauna is extinct in Trinidad and Tobago but conservation efforts have reintroduced these macaws on Trinidad. Between 1999 and 2004 wild caught macaws from Guyana were brought to Trinidad and placed into pre-release flight cages. Fourteen birds were released, 9 survived and produced 12 chicks within three mating seasons. Upon a second release, 12 macaws acclimated into pre-existing groups and produced 14 chicks within three mating seasons. Habitat degradation in South America from pollution, development, and logging is also affecting populations of blue and yellow macaws. (Plair, 2008)

For More Information

Find Ara ararauna information at

Contributors

Kristina Catania (author), Florida State University, Emily DuVal (editor), Florida State University, Tanya Dewey (editor), University of Michigan.

References

2010. "Bird Life International. IUCN Red List of Threatened Species." (On-line). Accessed March 17, 2010 at www.iucnredlist.org.

Juniper, T. 1998. A Guide to Parrots of the World. New Haven: Yale University Press.

Low, R. 1983. Amazon Parrots. London: The Bailisk Press.

Plair, B. 2008. Ornitologia Neotropical. Behavioral monitoring, of Blue-and-yellow Macaws (Ara ararauna) reintroduced to the Nariva Swamp, Trinidad, 19: 113-122.

Ragusa-Netto, J. 2006. Ornitologia Neotropical. Dry fruits and the abundance of the Blue and yellow macaw (Ara ararauna) at a cerrado remnant in central Brazil, 17.4: 491-500.

To cite this page: Catania, K. 2011. "Ara ararauna" (On-line), Animal Diversity Web. Accessed June 01, 2012 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Ara_ararauna.html

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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