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Doyle's essay was published on September 22nd, 2004. He wrote this during a time where hardships of his son was going on and the world around him also was going through a rough time, and needed to be remind that everyones hearts have significance.

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The speaker of the short essay is Brian Doyle. He was a essayist and novelist and Joyas Voladares is the lead piece in a just-published collection of Brian’s essays called One Long River of Sound: Notes on Wonder.  He was also a editor of Portland magazine at the university of Portland and died on May 27, 2017. Brian Doyle has a son who is missing a chamber in one of his hearts. He writes this essay because of his sons condition directly correlating with the message of the hearts significance.

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Joyas Voladoras was part of a collection of Brian's essays written by Doyle called One Long River of Sound: Notes on Wonder and he wrote it because one of his sons was missing one of the chambers in his heart. He also says the book is a celebration of his son and his wife and their brave and complex souls.

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The intended audience is towards a general population who may not realize the full extent of how important life is.  Doyle emphasizes the importance that all  moments in life are important to everyone, and that the audience is reminded of the fact that in every good and bad moment it has significance on their life.

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Doyle's purpose is to emphasize that all living things have emotions that can affect the heart to make the audience understand the importance to realize that every moment in life is notable.

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Doyle begins the essay by describing the hummingbirds traits and heart. Later in the essay he introduces other animals like a turtle, and whale that all are classified in their own ways by what their life is like and their heart. Doyle ends the essay by describing and exemplifying the hearts meaning and how much significance is held in the heart for all lifes.

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Doyle starts the essay in an admiring tone of the hummingbird, whale, and other animals as he says "Every creature on earth has approximately two billion heartbeats to spend in a lifetime" as he is ardent of these animals hearts. He shifts the tone at the end of the essay as he talks in a  sentimental tone about the meaning of the heart "So much held in a heart in a lifetime. So much held in a heart in a day, an hour, a moment" urging the audience to know how important one's heart is.

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Pathos- "But when they rest they come close to death: on frigid nights, or when they are starving, they retreat into torpor, their metabolic rate slowing to a fifteenth of their normal sleep rate, their hearts sludging nearly to a halt," The use of pathos makes the reader sympathetic for the hummingbird because their heart is so slow, it's easier for it to stop beating and for the bird to die.

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Features (devices - figurative & syntactical, word choice, sentence structure)

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Features (devices - figurative & syntactical, word choice, sentence structure)

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Anaphora- "Their hearts are built of thinner, leaner fibers than ours. Their arteries are stiffer and more taut. They have more mitochondria in their heart muscles—anything to gulp more oxygen." The use of anaphora emphasizes how a hummingbird's heart is similar to a human's suggesting that our hearts work in the same ways.
Asyndeton- "But when they rest they come close to death: on frigid nights, or when they are starving, they retreat into torpor, their metabolic rate slowing to a fifteenth of their normal sleep rate, their hearts sludging nearly to a halt, barely beating" The use of asyndeton provides how the hummingbird lives its life using their heart as it's an example connecting to the message on the value of the heart.

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Metaphor- "Hummingbirds, like all flying birds but more so, have incredible enormous immense ferocious metabolisms. To drive those metabolisms they have race-car hearts" The use of metaphor represents the hummingbird having a heart that is very fast and distinctive. The metaphor of the heart provides detail of the hummingbirds heart and how it lives it's life to connect to the purpose.
Allusion- "the shatter of glass in the road" The use of allusion references a car crash connecting to the idea that many things can easily break such as the heart at any instant.
Simile- "The valves are as big as the swinging doors in a saloon" The simile of the size of a whale's valve emphasizes the idea that all living things are similar yet different. All living things have valves in the heart but each organism is going to have smaller or bigger valves than others.

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Brian Doyle in his short essay "Joyas Voladoras" (2004), asserts that all life has substance and meaning that is captured in the heart. Doyle reinforces his assertion by providing description of a hummingbirds life and what their heart goes through while also classifying other animals like a whale and a tortoise by their hearts, exemplify how much meaning the heart has in all lives. Doyle's purpose is to demonstrate that all different emotions will be held in a hearts lifetime in order to remind people that all moments of life are important and provide significance to ones heart. Doyle establishes a amiable, sentimental tone for an audience who may not realize their essence.