Hummingbirds, called huitzillin ("wee-TZEEL-een") in the Nahuatl language of the Aztecs, are one of the most recognizable and striking species in the avian world. While these pollinators are known in the Western imagination for their vibrant features, extreme metabolism, and diminutive size, the ancient peoples of Mesoamerica, particularly the Aztecs, identified these extraordinary birds with war, blood, and sacrifice.
The most notable physiological aspect of hummingbirds is their tiny, lightweight, and extremely maneuverable bodies. They are the smallest species of bird and, unsurprisingly, build the smallest nests. According to the Smithsonian National Zoo, the bee hummingbird weighs only 1.95 grams, and the ruby-throated hummingbird lays an egg only about the size of a pea in a nest made from plant matter and spider webs that is approximately the size of a walnut shell.
The most unique quality of these creatures, however, is their maneuverability. Hummingbird wing strokes are powerful when flapping both up and down, and they are the only vertebrates capable of hovering for long periods of time. Their wings, beating about 70 times per second in direct flight and 200 times per second during a dive, allow hummingbirds to fly upside-down as well as backwards. Quite literally zooming through the air, they can reach a maximum flight speed of 45 mph (72 km/h), making loud insect-like noises when they fly nearby. To power these amazing aerial feats, their hearts beat up to 1,200 times per minute while in flight, compared to about 225 beats per minute while at rest. By contrast, average adult humans have a heart rate of 60 to 100 beats per minute. Furthermore, hummingbirds are relentless in pursuing food resources, feeding on the nectar in flowers, bugs caught mid-flight, and, when they can get it, sap made available by woodpeckers. There are approximately 340 species of hummingbird, and all of them are native to the Americas.
Hummingbirds also make use of a unique survival adaptation known as torpor through which they adjust their metabolic functions, including heart rate and body temperature, to the minimum needed for survival. When in this state, a hummingbird might seem to be in a very deep sleep, somewhat like hibernation except that these birds can go into torpor any night of the year if conditions, for example food shortage or low temperature, make it necessary. Book 11 folio 24r of The Florentine Codex describes this as a process by which the hummingbird "inserts its beak into a tree; there it shrinks, shrivels, and molts…when the sun warms, when the tree sprouts, when it leafs out at this time also grows feathers once again. And when it thunders for rain, at that time it awakens, moves, comes to life" (translated by Anderson & Dibble). Indeed, some hummingbirds hang upside down and might seem to shrivel as torpor reduces their bodily functions.
Despite their small size, hummingbirds have a reputation for fearlessness and aggression and are known to attack creatures many times their size. The Smithsonian National Zoo describes them as "pugnacious and feisty," and mid-air quarrels and high-speed chases are commonplace when multiple hummingbirds are in close proximity. Even during migration, hummingbirds sometimes defend a particular flower patch to secure food resources, with larger species trying to dominate the nectar supply and smaller species doing their best to sneak in for a sip.
In her book The Aztec Myths: A Guide to the Ancient Stories and Legends, Camilla Townsend writes:
The Aztecs loved hummingbirds. Despite their small size, hummingbirds are admirably strong and skilled at surviving…They can appear ferocious with their elegant, sword-like beaks, which they use to feed off of the nectar in flowers – which to the Aztecs were a symbol of warriors.
(62)
Resilience, survival, and military prowess were among the pillars of Aztec culture, especially at the height of their empire. Aztec stories tell of their long journey over generations to the site of Tenochtitlan led by their tutelary and supreme god Huitzilopochtli ("Wee-tzeel-o-POCH-tlee"), whose name means something like "hummingbird of the south," "hummingbird on the left," or "left-footed like a hummingbird" in Nahuatl.
In the minds of the Aztecs, left-handedness was special and admirable, and taken with the ferocity and grace of a hummingbird, Huitzilopochtli's name spoke to the formidable nature of the god. One of the legendary leaders of the Aztec civilization before their arrival at Tenochtitlan was named Huitzilihuitl, meaning "hummingbird feather." Moreover, the second tlatoani of Tenochtitlan, who ruled his people from 1395 to 1417, bore the same hummingbird-centered name. This second Huitzilihuitl was the son of the first tlatoani of the Aztec capital, Acamapichtli ("handful of arrows," reign 1375 to 1395), and would go on to father two of Tenochtitlan's later rulers, Chimalpopoca ("smoking shield," reign 1417 to 1426) and Moctezuma Ilhuicama ("angry lord, archer of the sky," reign 1440 to 1469), who is also known as "the Elder" to distinguish him from his more famous successor.
For the Aztec people, hummingbirds represented all of the desirable traits of their warriors and military leaders. It was Huitzilopochtli, crowned with the feathers of a hummingbird, who presided over one half of the Heuteocalli or "great temple," known today as the Templo Mayor, at the heart of Tenochtitlan. Furthermore, the extant story of Huitzilopochtli's birth attributes his conception to a ball of feathers found by his goddess-mother Coatlicue, as she swept the temple. Far from a loose association, the great war god of the Aztecs seems to have been intimately connected to his avian namesake, both culturally and by the feathers through which he was sired.
The Aztecs were not the only culture in Mesoamerica to revere hummingbirds and associate them with gods and sacred practice. Bloodletting as a form of sacrifice was often compared to hummingbirds sucking nectar from flowers in ancient Mesoamerican art and beliefs. Because bloodletting was a ritual practiced routinely throughout the region, this association linked hummingbirds with the sacrifices of and to the gods. The blood of the gods was instrumental in the creation of life, particularly humanity and the sun, and, in return for this life-giving, they required offerings of human blood to further sustain mortal life on earth. This reciprocity was a key aspect of Maya and Aztec culture, and it formed the cornerstone of rituals from the time of the Olmec civilization to Aztec sacrifice.
As a result of this association, long hummingbird beaks gave form to perforator blades made of fine jadeite and used for bloodletting from the time of the Olmecs. The Maya commonly depicted hummingbirds perforating flowers or having flowers midway down their beaks, and in the Lower Temple of the Jaguars at Chichen Itza, a hummingbird pierces the heart of a man emerging from a flower. In the Codex Borgia, the Aztec god Quetzalcoatl is featured in the guise of a hummingbird standing in a cascade of blood marked with jade and flowers, symbols of water, fertility, and life itself.
Furthermore, hummingbirds themselves were viewed as an idealized form of life that could only be attained by the luckiest of the dead. The Aztecs believed that it was the manner of death, not the actions in life, that determined one's fate after death. Thus, the luckiest dead were those who died in a struggle for life, including warriors, human sacrifices to the gods, and women who died in childbirth. Only these individuals earned the right to return to the world as hummingbirds to sip nectar from flowers, slice fearlessly through the air, and shine in vivid colors in the light of the sun. Moreover, these individuals were also believed to join Huitzilopochtli in his daily celestial triumph over his half-sister Coyolxauhqui, who represented the moon, and his half-brothers the Centzon Huitznahua, who represented the stars. This fate was the highest form of glory, dignity, and fulfillment of life in the Aztec imagination and indeed a reason to seek death as a warrior in Aztec warfare or by sacrifice. Ascension as a companion to the hummingbird sun god, or to return to life as the bird itself, was reserved only for the most courageous among the Aztec peoples.
Darting, hovering, chasing, attacking, and dancing through the air and between food sources, hummingbirds are dazzling. Their vibrantly iridescent feathers, particularly those on the gorgets at their throats, catch sunlight at unique angles. With plumage in a huge range of colors depending on species and gender, these birds captured the imaginations of the Aztec peoples, and their feathers became a precious commodity.
The Florentine Codex describes some of the hummingbird species known to the artisans of the Aztec Empire, specifically the amantecas, who specialized in featherwork, a process by which bird feathers were used to create captivating works of art:
Broad-tailed hummingbird: its throat is chili-red, its wing-bend ruddy. Its breast is green. Its wings and its tail resemble quetzal feathers…the broad-billed hummingbird is light green; a turquoise shade; herb green…the rufous hummingbird is red and black…the allen hummingbird its feathers are glistening, resplendent.
(Book 11 folio 24r, translated by Anderson & Dibble)
The Aztecs had a great appreciation for the beauty and variety of hummingbirds, not just for their use in art but as living creatures. The Florentine Codex includes painted images of hummingbirds in flight. In this depiction, one hummingbird is sitting in a nest, one is feeding on a flower, one seems to be in torpor, and a few others fly away from the vegetation, long beaks extended, no doubt seeking their next meal.
Though they were not the only birds used in the highly revered Aztec art of featherwork, hummingbird feathers were second in rarity only to those of the resplendent quetzal (Pharomacrus mocinno), whose fabulous emerald green feathers decorate the famous headdress of Motecuzoma II. A particularly stunning example of hummingbird feathers as they were used in this art form depicts Saint John the Evangelist. In this small piece, significant parts of the image, including St. John's hair, robe, and the sky behind him, are wrought in the iridescent fan-like feathers of this smallest species of bird. Mighty, majestic, and miniscule, hummingbirds were far more than just colorful creatures in the minds of the Aztecs: they were warriors, survivors, and the namesakes of gods and kings.