Amazona viridigenalis

(Cassin, 1853) · species

image placeholder — illustration coming later

Animalia/Chordata/Aves/Psittaciformes/Psittacidae/Amazona

At a glance

Occurrence records92 339

Data sources10

Biological traits27

DNA specimens3

eDNA detections2

Sources10 archives

Databases and archives Amazona viridigenalis's data was compiled from.

WikipediaWikimedia Foundation13 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility92 339 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics3 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

GoaTGenomes on a Tree · Sangergenome & karyotype↗

WikidataWikimedia Foundationstructured facts↗

IOC World Bird ListIOCbird checklist↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page6 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements4 literature sources27 traits

Occurrence & distributionGBIF92 339 records

Environmental DNA1 datasets · 0 countries2 detections

DNA & barcodingBOLD3 specimens

Genome at a glanceGoaT1.5 Gbp

01Narrative

The red-crowned amazon (Amazona viridigenalis), also known as the red-crowned parrot, green-cheeked amazon or Mexican red-headed parrot, is an endangered amazon parrot native to northeastern Mexico and southern Texas in the United States. A 1994 study estimated wild populations of between 2,000 and 4,300 mature individuals; the IUCN Red List considers it a globally endangered species with a decreasing population. The main threats to the native bird's survival are the illegal export of trapped birds from Mexico to the United States for the pet trade and the destruction of their natural habitat, the lowland forests of northeastern Mexico.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesEltonTraitsAnAgeAmnioteDBAVONET

Size & morphology11

Beak depth27.5 mm

Beak length (culmen)33.5 mm

Beak length (nares)26.6 mm

Beak width16.4 mm

Body mass316 g

Hand-wing index36.4

Kipp's distance70.9 mm

Secondary length125 mm

Tail length99.6 mm

Tarsus length20.1 mm

Wing length199 mm

Life cycle & reproduction3

Egg mass14.9 g

Fledging mass287 g

Litter size3.45

Diet & foraging9

Canopy20 %

Fruit30 %

Ground20 %

Midhigh40 %

Plant other40 %

Seed30 %

Trophic levelherbivore

Trophic nicheOmnivore

Understory20 %

Habitat & environment4

HabitatForest

Migration1.0

Primary lifestyleInsessorial

Range size7 846 km²

05DNA & barcoding3 specimens

A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Amazona viridigenalis has left across the world's sequence archives.

At a glance

DNA specimens3

BINs1

Marker genes2

eDNA detections2

Marker genes sequenced

★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.

★COI-3P★COI-5P

animal barcode

06Genome at a glanceGoaT

The complete instruction manual Amazona viridigenalis carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.

Genome sizehow big the whole instruction manual is

Genome size1 506 120 000 bp

Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).

BACTERIUM Carsonella ruddii0.00016 Gb

FUNGUS0.04 Gb

INSECT0.25 Gb

THIS GENOME Amazona viridigenalis1.51 Gb

HUMAN3.2 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

Chromosomes & ploidyhow the DNA is packaged

2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.

Chromosomes2n = 72 n = 36

Chromosome records72–722n range72median72mode2records

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 722×GoaT · Bird Chromosome Database

GoaT · Bird Chromosome Database — ↗

08Occurrence & distribution

Record type92 339 records

Wild obs. + sensor92 061

Museum / vouchered273

Other5

Origin

Native61

Range

Area of Occupancy AOO11 640 km²

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

Coordinate accuracy2% within 1 km

≤100 m 103≤1 km 4≤10 km 1>10 km 5 919

6 027 georeferenced · 86 034 without coordinates

Open the mapobservation + sensor92 061

Museum / Voucheredphysical evidence

Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.

Coordinate accuracy72% within 1 km

≤100 m 122≤1 km 10≤10 km 42>10 km 9

183 georeferenced · 90 without coordinates

Open the institutions mapphysical evidence273

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

10Collections & institutions

Holding institutions20 of 27 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Moore Laboratory of Zoology, Occidental Collegelocation not on record	51
Chicago, US	24
	22
Delaware Museum of Nature and Sciencelocation not on record	21
Los Angeles, US	20
South Kensington, GB	13
San Diego, US	12
Texas Cooperative Wildlife Collectionlocation not on record	9
Cambridge, US	7
Philadelphia, US	7
Chongqing Museumlocation not on record	7
Berkeley, US	7
Ithaca, US	6
Wuzhou, CN	5
Louisiana State University, Museum of Zoologylocation not on record	4
Seattle, US	4
Washington, US	4
Ann Arbor, US	3
Toronto, CA	3
US	2
Ciudad de México, MX	2
Vancouver, CA	1
Mexico City, MX	1
ASNHClocation not on record	1
Mexico City, MX	1
Mongolian Museum of Natural Historylocation not on record	1
New Haven, US	1

27 institutions · 239 of 273 vouchered records shown · 34 without an institution code

09Environmental DNA2 detections

Where the DNA of Amazona viridigenalis was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.

Signal

Detections DNA found2

Studies independent surveys1

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 2 detections have coordinates

Open the map0 countries0

How strong is each trace?

DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.

How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.

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Amazona viridigenalis

At a glance

Sources10 archives

Size & morphology11

Life cycle & reproduction3

Diet & foraging9

Habitat & environment4

At a glance

Genome sizehow big the whole instruction manual is

Chromosomes & ploidyhow the DNA is packaged

Record type92 339 records

Origin

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions20 of 27 geolocated

Signal

Where its DNA was found

How strong is each trace?

Record type92 339 records