The correct spelling is aviary (a-v-i-a-r-y), and the full phrase is bird aviary, two separate words. To learn how to write the word “bird” in cursive, practice the connected letters slowly, then increase your speed write bird in cursive. "Aviary" is the standard dictionary noun for a large enclosure where birds are kept. The phrase "bird aviary" is a natural, widely used descriptor that adds clarity, but dictionaries treat "aviary" on its own as the complete word. If you've been typing "bird avery," "avery," or "aviery," those are the most common misspellings to watch out for.
How Do You Spell Bird Aviary? Spelling, Meaning, Pronunciation
James Ridgley
6 Jun 2026
The spelling, broken down
Aviary has six letters across four syllables: a-vi-a-ry. Write it out as A-V-I-A-R-Y. The full phrase "bird aviary" is simply those two words side by side, no hyphen needed. It is never one word (birdaviary is not a thing), and there is no alternate spelling of aviary that is considered correct.
The most common misspelling by far is "avery" or "bird avery," which drops the "i" and swaps the ending from "-ary" to "-ery." That's an easy error because "Avery" is a familiar name, and the "-ery" ending feels natural in English (think bakery, brewery). The word you want ends in "-ary," not "-ery." A few other variants people type by mistake:
- aviery (wrong vowel order in the middle)
- aviairy (adds an extra "i")
- aviarie (wrong ending)
- bird avery (most common full-phrase error)
- bird aviary (correct)
What "aviary" actually means
Cambridge defines aviary as "a large cage or closed space in which birds are kept as pets." Merriam-Webster keeps it even simpler: "a place for keeping birds confined." Both treat it as a straightforward noun with the plural form aviaries. In practice, an aviary is larger than a typical birdcage and is designed to give birds room to fly or at least move freely. The RSPCA's housing guidance, for example, suggests the height, width, and depth of an aviary should each be at least four times the wingspan of the largest bird being kept inside.
The phrase "bird aviary" is used descriptively rather than as a fixed dictionary phrase. You might see it in product listings, outdoor enclosure guides, and pet setup articles. It's there to remove ambiguity, because "aviary" alone can sometimes show up as a brand name or a proper noun in unrelated contexts. Adding "bird" makes the meaning unmistakable. That said, in formal writing, standard English, and ornithology references, the single word "aviary" is all you need.
Using "aviary" correctly in sentences
In everyday writing and conversation, "aviary" works as a standalone noun. Here are a few examples that show both uses:
- Everyday/general: "The zoo has a new outdoor aviary where you can walk among the birds."
- Pet/home setup: "We built a bird aviary in the backyard for our finches and doves."
- Formal/ornithology: "The research institution maintains a temperature-controlled aviary for winter housing."
Notice that the zoo example and the formal example use "aviary" alone, while the backyard pet context uses "bird aviary" for added clarity. Either phrasing is correct. In a sentence about a specific pet setup or a product you're searching for online, "bird aviary" is completely natural. In a field guide, a scientific paper, or a news article about a zoo, you'd just say "aviary."
How to pronounce aviary
The stress falls on the first syllable. In British English, Cambridge gives the IPA as /ˈeɪ.vi.ə.ri/, which sounds like AY-vee-uh-ree. In American English, Merriam-Webster gives /ˈā-vē-ˌer-ē/, which sounds like AY-vee-air-ee. The main difference is that the third syllable in the US pronunciation sounds like "air" rather than "uh." Both are correct for their respective dialects.
| Dialect | IPA | Plain phonetic guide |
|---|---|---|
| British English | /ˈeɪ.vi.ə.ri/ | AY-vee-uh-ree |
| American English | /ˈeɪ.vi.er.i/ | AY-vee-air-ee |
When you say the full phrase "bird aviary," just pronounce "bird" normally and follow it with the aviary pronunciation above. There's no blending or elision between the two words. The stress remains on the first syllable of aviary: bird AY-vee-air-ee.
Terms people mix up with aviary
A few related words show up in the same conversations as "aviary," and it's worth knowing how they differ so you pick the right word for the right situation.
| Term | What it means | Key difference from aviary |
|---|---|---|
| Aviary | A large enclosure or structure for keeping birds, with space to fly | The standard word; the one you're spelling |
| Birdcage / cage | A small enclosure designed to house birds, typically indoors | Much smaller; birds can't fly freely inside |
| Coop | An enclosure or small building for poultry like chickens | Associated with poultry, not pet or wild birds |
| Enclosure | General word for any confined space for animals | Non-specific; doesn't signal birds in particular |
| Walk-in aviary | A large aviary big enough for people to enter | A subtype of aviary, not a replacement term |
The key takeaway: use "aviary" when you mean a sizeable structure built specifically for birds with room to move. Use "cage" or "birdcage" for smaller, more confined setups. Use "coop" only for chickens or poultry. And "walk-in aviary" is a more specific phrase for particularly large structures, like those you'd find in a bird park or botanical garden. Cambridge's related vocabulary list groups aviary with "bird box" and "birdcage" as semantic neighbors, which is a good reminder that these terms live on a spectrum of size and purpose.
How to double-check your spelling and word choice
If you want to confirm the spelling quickly, three dictionary sources all agree and are worth bookmarking: Cambridge Dictionary, Merriam-Webster, and Oxford Learner's Dictionaries. All three list aviary as the standard noun, spell it A-V-I-A-R-Y, and include pronunciation audio you can listen to directly on their sites. You can also apply the same idea in creative writing by choosing a “bird aviary” example that you can write on a page, sign, or notebook. Merriam-Webster even shows example sentences using the word in context, which helps if you're unsure whether your sentence sounds natural.
For ornithology or wildlife contexts, Britannica's encyclopedia entry on aviaries is a solid cross-reference. It treats "aviary" as the standard term in zoo, conservation, and research settings, and describes practical details like climate control, which can help if you're writing about a specific real-world setup rather than a backyard pet enclosure.
If you're solving a word puzzle or crossword clue and need to verify that "aviary" is correct for a clue like "place where birds are kept," Merriam-Webster and Cambridge are your fastest checks. The definition is consistent across all major references: a confined space or structure where birds are housed. Searching "bird aviary spelling" or "how to spell aviary" in any of those dictionaries will get you there in one step. If you meant the phrase "bird aviary" in an Egypt-related context, you can type it the same way and then enter the location or country as your search or label. This site also covers spelling and language questions for other bird-related terms, including how to spell vulture bird and how to spell bird in general if you're working through a broader vocabulary question.
FAQ
Is “bird aviary” ever one word (like birdaviary)?
No. The correct spelling is aviary, and when you use it with the word bird, it stays two separate words: bird aviary. If you write birdaviary as one word, it will likely be treated as an incorrect spelling.
Why do people accidentally write “bird avery” instead of “bird aviary”?
The most common typing error is “bird avery” or “avery” because it drops the i and swaps the ending to “-ery.” Use the mnemonic ending check: aviary ends in “-ary,” not “-ery.”
When should I write “aviary” by itself versus “bird aviary”?
Use aviary alone when the enclosure is already clear from context. For example, in a zoo description you can write “the aviary” after the first mention, while “bird aviary” is helpful when you are describing a setup in a generic product listing or search query.
Should “bird aviary” be capitalized?
If your sentence uses “aviary” as an object, you typically do not capitalize it unless it names a specific place (for example, “Aviary Gardens” as a venue name). For general meanings, keep it lowercase: “the aviary,” “an aviary,” “bird aviary.”
What is the plural spelling, “aviaries” or something else?
In plural form, it becomes aviaries. So you would write “bird aviaries” for multiple enclosures, or “the aviaries” when you already established the topic.
Do I need a hyphen in “bird aviary”?
Hyphenation is not standard here. “Bird aviary” is written as two words with a space, not “bird-aviary” and not “bird aviary-like.”
What phrase should I use if it’s a very large enclosure, like a walk-in setup?
If you are writing about a specific, very large enclosure, “walk-in aviary” is a common more specific phrase. For smaller, more restrictive spaces, “birdcage” or “cage” is usually the better term.
Can “aviary” be used as a brand or proper noun, and does that change the spelling?
Yes, “aviary” can appear as part of proper nouns. If you mean a named organization or location, follow its official capitalization and spacing, but for the general enclosure meaning, stick with the lowercase noun aviary.
Citations
Cambridge gives the standard pronunciation of **aviary** as **UK: /ˈeɪ.vi.ə.ri/** and **US: /ˈeɪ.vi.er.i/** (with “aviary” as a single noun).
AVIARY | Pronunciation in English (Cambridge Dictionary) - https://dictionary.cambridge.org/pronunciation/english/aviary
Cambridge defines **aviary** as “a large cage … or closed space in which birds are kept as pets” (a single noun; no separate dictionary entry for a fixed phrase like “bird aviary”).
AVIARY (Cambridge Dictionary entry: meaning) - https://dictionary.cambridge.org/us/dictionary/english/aviary
Merriam-Webster defines **aviary** as “a place for keeping birds confined.” It lists **aviary** as a noun (with plural **aviaries**).
aviary (Merriam-Webster) - https://www.merriam-webster.com/dictionary/aviary
Merriam-Webster’s entry spells **aviary** as one word; the pronunciation shown in the entry is **/ˈā-vē-ˌer-ē/** (noun), reinforcing that the standard form is the single word “aviary.”
AVIARY definition in American English (Merriam-Webster entry: word info) - https://www.merriam-webster.com/dictionary/aviary
Oxford Learner’s Dictionaries lists **aviary** as a noun and provides pronunciation guidance (entry form indicates it is treated as the standard single-word noun).
aviary noun - Oxford Learner’s Dictionaries - https://www.oxfordlearnersdictionaries.com/definition/english/aviary
Cambridge provides the syllable-like segmentation in the UK IPA for **aviary**: /ˈeɪ.vi.ə.ri/ (stress on the first syllable, “EYE-…”).
AVIARY | Pronunciation in English (Cambridge Dictionary) - https://dictionary.cambridge.org/pronunciation/english/aviary
An example of the everyday phrase variation appears in an article: the site uses the wording **“bird aviary”** (e.g., “We call that place a **bird aviary**.”). This indicates “bird aviary” is used descriptively, even if not treated as a standard set phrase by dictionaries.
Thayerbirding.com — “Place Where Birds Live is an Aviary” - https://www.thayerbirding.com/place-where-birds-live/
Merriam-Webster’s sentence examples show standard usage of the single word **aviary** (e.g., “The zoo has a new outdoor aviary.”), which suggests “aviary” is the normal choice in everyday writing.
Merriam-Webster — Examples of ‘aviary’ in a sentence - https://www.merriam-webster.com/sentences/aviary
Encyclopedia-style definition: **aviary** is “a large enclosure for confining birds” (single-word noun meaning; commonly used in zoo/conservation/pet contexts).
English Wikipedia — Aviary (overview) - https://en.wikipedia.org/wiki/Aviary
Britannica describes aviaries in real-world practice: aviaries are often **enclosed and heated** in cold climates, and may exist in **zoos** or **research institutions**—again treating “aviary” as the standard term.
Britannica — Aviary (bird enclosure article) - https://www.britannica.com/science/aviary
This site explicitly asserts a spelling variant issue: it claims **“bird avery”** is a common misspelling of **“bird aviary.”** (Useful for documenting how writers can get “bird aviary” wrong in practice.)
House of Isabella AU — “Bird Aviary Guide…” - https://houseofisabella.com.au/pages/bird-avery
It also provides the wording “bird aviary” itself as the intended phrase, implying “bird aviary” can be used in commercial/outdoor-bird-setup contexts (even though “aviary” alone is the dictionary word).
Houses of Isabella AU — “Bird Aviary Guide…” - https://houseofisabella.com.au/pages/bird-avery
Third-party phrase indexers may treat **“bird aviary”** as a searchable phrase (it has its own page), suggesting some users seek that exact wording.
GetIdiom.com — bird aviary - https://getidiom.com/dictionary/english/bird-aviary
The same source indicates the misspelling pattern is substituting **“aviary” → “avery”** (letter swap around the “-ary/-ery” ending).
House of Isabella AU — “bird avery” misspelling claim - https://houseofisabella.com.au/pages/bird-avery
Cambridge’s “SMART Vocabulary”/related list in the entry groups “aviary” with related bird-dwelling terms like **bird box** and **birdcage**, showing common semantic neighbors people may confuse.
Cambridge Dictionary — aviary (meaning includes “bird box” type synonyms list) - https://dictionary.cambridge.org/us/dictionary/english/aviary
RSPCA advice uses **“aviary”** for a “large outdoor cage or enclosure” and even gives a sizing rule of thumb: the **height/width/depth** should be **four times** the largest bird’s flying wingspan (practical distinction from smaller cages).
RSPCA (UK) — Housing and Environments for Pet Birds - https://www.rspca.org.uk/adviceandwelfare/pets/birds/environment
Merriam-Webster defines **coop** as (among senses) “a chicken coop” and also more generally “a cage or small enclosure or building for housing poultry or small animals,” distinguishing it from a (usually larger) **aviary** meant for birds to move/flight space.
Merriam-Webster — coop (definition) - https://www.merriam-webster.com/dictionary/coop
Britannica Dictionary similarly frames **coop** in terms of **a chicken coop** and also using “cooped up” for confinement—again positioning “coop” as a more limited enclosure concept than “aviary.”
Britannica Dictionary — coop (definition examples) - https://www.britannica.com/dictionary/coop
Wikipedia distinguishes **birdcage** as a cage designed to house birds; it notes that small cages are relatively cheap and that **large parrot-sized cages can be more expensive than an aviary**, reinforcing typical size/space differences.
Wikipedia — Birdcage - https://en.wikipedia.org/wiki/Birdcage
Oxford Learner’s Dictionaries treats **aviary** as a straightforward noun entry (not as a phrase requiring “bird” as a modifier), supporting the idea that “aviary” is the default word in standard English.
Oxford Learner’s Dictionaries — aviary (entry form) - https://www.oxfordlearnersdictionaries.com/definition/english/aviary
Not a dictionary meaning, but a demonstration that “Aviary” is also used as a proper noun/brand-like label in other domains; this can be a reason why adding “bird” in a phrase like “bird aviary” can reduce ambiguity in everyday search contexts.
arxiv.org — “Aviary: training language agents…” - https://arxiv.org/abs/2412.21154
Cambridge pronunciation page supports the full-phrase guidance: to pronounce **“bird aviary,”** you pronounce **bird** normally + **aviary** with stress on the first syllable (/ˈeɪ.vi.ə.ri/ in UK).
Cambridge Dictionary — pronunciation page for aviary - https://dictionary.cambridge.org/pronunciation/english/aviary
Wiktionary lists IPA pronunciations including **UK: /ˈeɪvɪəɹi/** and **General American: /ˈeɪviˌɛəɹi/** and defines aviary as a house/enclosure/large cage for keeping birds confined—consistent with major dictionaries.
Wiktionary — aviary (pronunciation + meaning) - https://en.wiktionary.org/wiki/aviary
The Aviary article mentions **walk-in aviaries** as a subtype in bird parks, supporting the use of “walk-in aviary” as a more specific phrase rather than replacing “aviary” with “bird aviary.”
Wikipedia — Aviary (walk-in aviary mention) - https://en.wikipedia.org/wiki/Aviary
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