Comparison

eBird vs ABA/AOU Bird Codes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

eBird

Easily record bird sightings in the field and contribute to a global database for scientific research and conservation. This app offers offline functionality, customized checklists, and GPS-enabled location plotting.

Highlights
  • Record bird observations globally
  • Global taxonomy and local common names
  • Location and time-based checklists
  • Rare species flagging
  • Offline functionality
  • GPS location plotting
  • Trip and day list tracking
Features
Currently charting
Read full description

eBird Mobile makes it easy to record the birds you see in the field, and seamlessly link these observations with eBird--a global online database of bird records used by hundreds of thousands of birders around the world. This free resource makes it easy to keep track of what you see, while making your data openly available for scientific research, education, and conservation. eBird Mobile is the only app that passes information directly from the iOS device to your eBird account on the web. Features - Enter bird observations from any location around the world. - Full global taxonomy based on The Clements Checklist of Birds of the World. - Common names available in local languages (e.g., Portuguese names in Brazil or in Portugal). - Checklists customized for your location and time of year, showing most likely species based on eBird data. - Rare species flagged during data entry and on the checklist. - "Record as you go" functionality for incremental list keeping and counting while birding. - GPS enabled location plotting to ensure accuracy. - Map tools that enable selecting from hundreds of thousands of eBird "Hotspots." - Full offline functionality, enabling use in places with limited or no Internet connection. - Trip and Day list functionality that makes it easy to keep track of your species list on a particular outing. - Support for iPhone, iPad, and iPod Touch. - Entire app translated to German, Mandarin, French, Spanish, Portuguese (Brazil), Turkish, and Dutch.

About

ABA/AOU Bird Codes

This app provides a quick reference for ornithological bird codes, used in data collection and field notes. It allows users to search and sort by common name, scientific name, or code, and toggle between ABA and AOU bird lists. Includes USGS species numbers and banding sizes.

Highlights
  • Quick bird code lookup
  • Sort by common/scientific name or code
  • Toggle ABA/AOU bird lists
  • USGS Species Numbers
  • Banding Sizes
Features
Read full description

In the world of ornithology and bird watching, alpha codes are a shorthand for describing a specific bird. These codes are an abbreviation of a bird’s common(4 letters) or scientific(6 letters) name and are used in banding data, field notes, and other data collection projects. Schechter Natural History’s Bird Codes is a simple tool to look up bird reporting codes for the ABA and AOU.* Features include * Quick search and bird lookup * Sort by common name, scientific name, or code * Toggle between viewing a list of birds included in the AOU or the ABA * USGS Species Numbers and Banding Sizes We hope you find the Schechter Natural History’s Bird Codes to be a helpful tool for your outdoor adventures and a fun and informative reference for home use. *The American Ornithologists’ Union (AOU) includes birds recorded in North America, Mexico, Central America, and the Caribbean region. Whereas the American Birding Association (ABA) only contains birds in North America.

Screenshots

eBird4 screens
ABA/AOU Bird Codes4 screens

Verdict

The call

The clearest difference is review sentiment: ABA/AOU Bird Codes at 100% against eBird's 37%. ABA/AOU Bird Codes also leads on rating (5.0 vs 3.8) and iOS requirement (15.1 vs 18.0). eBird's advantage is price (Free vs $0.99) and ratings volume (803 vs 1). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

eBird is free to download; ABA/AOU Bird Codes costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ABA/AOU Bird Codes holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: eBird has 803 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 37% of eBird's written reviews are positive against 100% of ABA/AOU Bird Codes's.

UpkeepUpdate frequency

eBird ships an update monthly, ABA/AOU Bird Codes every 3 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

Scorecard8 real differences · 3 level
eBird versus ABA/AOU Bird Codes: the parameters behind the verdict, then further details
ParametereBirdABA/AOU Bird Codes
PriceFree — better$0.99
Rating3.8 (803 ratings)5.0 (1 ratings) — better
Positive reviews36.6% of reviews100.0% of reviews — better
Number of ratings803 — better1
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#132 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size81 MB22 MB
Age rating4+4+
DeveloperCornell UniversitySchechter Natural History LLC

Customer experience

eBird

All ratings803 ratings
Positive67.9%
Neutral9.7%
Negative22.4%
Written reviews361 reviews
Positive36.6%
Neutral18.6%
Negative44.9%

ABA/AOU Bird Codes

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

eBird

Reported bugs

5 issues
  • App crashes when trying to start a new checklist
  • Inability to log in or access account
  • Inconsistent behavior with bird pack downloads
  • Checklist data not syncing across devices
  • Explore feature not working as expected

Requested features

5 requests
  • Add ability to upload photos and audio directly in the app
  • Implement alphabetical sorting for checklists
  • Improve syncing between app and website
  • Add more advanced filtering and search options
  • Provide offline access to bird information

ABA/AOU Bird Codes

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

eBird

No in-app purchases

None

ABA/AOU Bird Codes

No in-app purchases

Questions

Is eBird free?
eBird is free to download, with no in-app purchases.
Is ABA/AOU Bird Codes free?
ABA/AOU Bird Codes costs $0.99, with no in-app purchases.
Which has better reviews, eBird or ABA/AOU Bird Codes?
ABA/AOU Bird Codes is rated higher. eBird averages 3.8 out of 5 from 803 ratings, while ABA/AOU Bird Codes averages 5.0 from 1 ratings.
Do eBird or ABA/AOU Bird Codes have ads?
Neither eBird nor ABA/AOU Bird Codes shows ads.
Which is updated more often, eBird or ABA/AOU Bird Codes?
eBird ships an update monthly, and ABA/AOU Bird Codes every 3 months. Most recently, eBird was updated on October 16, 2026 and ABA/AOU Bird Codes on October 14, 2026.

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