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By Kristina Catania
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)
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)
Physical Description
900 to 1814 g
(31.72 to 63.93 oz)
81.28 to 91.44 cm
(32.00 to 36.00 in)
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)
Reproduction
Blue-and-yellow macaws form monogamous pairs that mate for life. (Juniper, 1998)
Blue-and-yellow macaws breed every 1 to 2 years.
Blue-and-yellow macaws breed from January through July.
2 to 3
24 to 28 days
10 (low) days
3 to 4 years
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.
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
Status: wild
30 to 35 years
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)
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)
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)
Predation
- harpy eagles (Harpia harpyja)
- hawk eagles (Nisaetus cirrhatus)
- orange-crested falcons (Falco deiroleucus)
- humans (Homo sapiens)
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)
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.








