Mexican parrotlet

The Mexican parrotlet (Forpus cyanopygius), also known as the turquoise-rumped parrotlet or the Mexican blue-rumped parrotlet, is a species of parrot in the family Psittacidae. It is the nominate species (F. c. cyanopygius).

Mexican parrotlet

Near Threatened  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Psittaciformes
Family: Psittacidae
Genus: Forpus
Species:
F. cyanopygius
Binomial name
Forpus cyanopygius
(Souancé, 1856)
Subspecies
  • F. c. cyanopygius
  • F. c. insularis

There is one subspecies: Grayson's parrotlet or the Tres Marias parrotlet (F. c. insularis).

Description
Name Appearance Range
Mexican parrotlet

(Forpus cyanopygius cyanopygius) (nominate species)

 Typically 13–14 centimetres (5.1–5.5 in) long and weigh 30–37 grams (1.1–1.3 oz).[2] Bright yellow-green bodies. Light peach beaks and feet and dark brown eyes.

Mexican parrotlets exhibit sexual dimorphism: males have light turquoise feathers along the leading edges of their wings and on their rumps and primaries, secondaries, and coverts; females are entirely yellow-green and slightly duller. Some male individuals have faint turquoise feathers behind their eyes and around their heads. Like all parrots, Mexican parrotlets exhibit zygodactyly, meaning two toes face forward and two face backward.

Juveniles look like adults, though young males have green feathers mixed in with their blue ones.[3]

 Sinaloa and western Durango to Colima[3]
Grayson's parrotlet or Tres Marias parrotlet

(F. c. insularis)

 Compared to the nominate species, males have darker green upperparts and bluer underparts. Their turquoise markings are darker. Females are darker green.[3] Individuals are usually slightly larger than those of the nominate species.[2] Tres Marias islands[3]

Distribution and habitat

Mexican parrotlets are endemic to western Mexico. Their range extends from southern Sonora to Colima.[4] This species is the northernmost member of the genus Forpus.[2] Though they are non-migratory, they wander throughout their range to follow the blooming and growth patterns of the plants they prefer to feed on.[3]

Natural habitats are subtropical or tropical dry scrublands, deciduous forests, open grasslands with scattered trees, heavily degraded former forest, plantations, and woodlands along watercourses.[4] They are not found at altitudes higher than 1,300 metres (4,300 ft) above sea level.[3]

Illustration of a male and female Mexican parrotlet

Conservation

According to the IUCN Red List, Mexican parrotlets are Near Threatened.[1] The population is estimated to be 50,000 or greater, but it is decreasing due to a combination of the illegal hunting and trapping of wild individuals and habitat loss.[1][2][3] Based on records created before 1995, there were approximately 208,000 individuals in Mexico. According to records from 1996–2013, around 107,000 remain, which represents a 48.4% drop in population.[5]

Threats

It is estimated that up to 8,000 individuals are illegally captured for the pet trade every year.[3] There are no current conservation measures in place, but many areas across the Mexican parrotlet's range are already protected.

Behavior

Social

Mexican parrotlets are highly social and gregarious birds, most often found in flocks of 4-30 individuals made up of pairs and family groups.[3] When flying in these flocks, they fly quickly and in relatively tight formations.[2] They create a variety of squeaky, excited-sounding chirps while perched or in flight. While feeding, they make occasional squawks.[3][4][6]

Reproduction

Mexican parrotlets typically breed between May and July, and lay clutches of up to 3 small, white eggs.[3] They are typically incubated for at least 19 days, and chicks fledge 4–5 weeks after hatching. Mexican parrotlets can live to be over 20 years old.[7] Mexican parrotlets usually nest in tree cavities, cacti, and other similar structures.[2]

Diet

Mexican parrotlets most commonly eat seeds, grass seeds, berries, and Ficus (fig) fruits, which may be ripe or half-ripe.[4][8] They forage both on the ground and in trees and shrubs as large flocks.[2] They are known to wander frequently in search of food, making regional population estimates difficult.

Aviculture

Mexican parrotlets are uncommon, though not unheard of, in aviculture. Because of their protections, they cannot legally be captured from the wild and sold as pets, so the captive population relies on breeding programs.

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References
  1. BirdLife International (2015). "Forpus cyanopygius". IUCN Red List of Threatened Species. 2015. Retrieved 26 January 2016.CS1 maint: ref=harv (link)
  2. "Mexican Parrotlet - Introduction | Neotropical Birds Online". neotropical.birds.cornell.edu. Retrieved 2019-03-16.
  3. "Mexican Parrotlet (Forpus cyanopygius) | Parrot Encyclopedia". www.parrots.org. Retrieved 2019-03-16.
  4. "Mexican Parrotlet - eBird". ebird.org. Retrieved 2019-03-16.
  5. Monterrubio-Rico, T.C.; Charre-Medellín, J.F.; Pacheco-Figueroa, C.; Arriaga-Weiss, S.; Valdez-Leal, J.D.D.; Cancino-Murillo, R.; Escalona-Segura, G.; Bonilla-Ruz, C.; Rubio-Rocha, Y. (2016). "Potential historical and contemporary distribution of the Psittacidae family in Mexico". Mexican Biodiversity Magazine. 87 (3). doi:10.1016/j.rmb.2016.06.004 – via SciELO.
  6. Beletsky, L. (2007). Bird Songs from Around the World. San Francisco: Chronicle Books. ISBN 978-1932855616.
  7. "Mexican Parrotlet Personality, Health, Care, Feeding, Colors and Sounds". PetGuide. 2018-08-03. Retrieved 2019-03-26.
  8. "Mexican Parrotlets, aka Turquoise-rumped Parrotlets or Mexican Blue-rumped Parrotlets | Beauty of Birds". www.beautyofbirds.com. Retrieved 2019-03-16.
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