valis

"This winged comparison is too swift for unripe wits. They lack the power to grasp it."

The swifts are a family, Apodidae, of highly aerial birds. The family scientific name comes from the Ancient Greek απους, apous, meaning "without feet", since swifts have very short legs and never settle voluntarily on the ground, clinging instead to vertical surfaces.~Wikipedia

Vaux's Swifts are truly amazing aerialists. They spend much of the time in the air and forage, drink, court, collect nesting materials and copulate all in flight. They have a voracious appetite for flying insects and ballooning spiders.~Audubon Portland

The "Chapman swifts" are part of a migratory population of Vaux's Swifts that roost seasonally in the chimney of Chapman Elementary School in Portland, Oregon. This is North America's largest concentration of Vaux's Swifts.^[3]

Every evening from mid-August to mid-October, thousands of swifts gather in the sky over the school shortly before sunset. Count estimates of 1,700 to 35,000 swifts have been reported. Shortly after sunset, over a period of 10 to 30 minutes, they fly into the top of the brick chimney (constructed c.1925) to roost on the interior surface until they depart at sunrise.^[4] The school is on the birds' migratory route to their wintering sites in southern Central America and Venezuela.^[5]

The swifts attract several predators, such as Peregrine Falcons and Cooper's Hawks, as well as hundreds to thousands^[4][6] of human spectators.^[7] 

^~Wikipedia

Vaux

The surname is locational in origin, from any of the various places in northern France called Vaux. The placename derives from the Old French plural form of "val", valley, which is "vaux", from the Latin "vallis".
~Surname Database

Parzival

The baby boy name Percival is pronounced in English as PAHRSihVahL. Percival's language of origin is Old French, and it is predominantly used in English and French. Percival is of the meaning 'one who pierces the valley'. The name was borne in Arthurian legend, and it was likely to have been first invented by the late 12th-century French poet Chrétien de Troyes, who spelt the name as Perceval (Old French), from the Old French percer ('to pierce') and val ('valley'). According to Chrétien and Wolfram von Eschenbach (1170-1220), who spelt the name as Parzifal (Germanic), the character was the most innocent of all the knights of the Round Table, and thus was the one who found the Holy Grail, although later legends identified Sir Galahad as the hero. Other theories suggest a derivation from the Normandy place name Percheval (Old French). The name could also be ultimately from Peredur (Celtic), which means 'hard steel', altered through association with Old French elements.

~BabyNamesPedia

On the other hand I have yet to meet a man so wise that he would not gladly know what guidance this story requires, what edification it brings. The tale never loses heart, but flees and pursues, turns tail and wheels to the attack and doles out blame and praise. The man who follows all these vicissitudes and neither sits too long nor goes astray has been well served by mother wit. - Wolfram Von Eschenbach - Parzival - Book I