eBird by Cornell Lab
v3.3.4 · 41.3 MB · code 180
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File information
UpdatedApr 16, 2026
PublishedApr 17, 2021
Packageedu.cornell.birds.ebird
Versionv3.3.4 (180)
Size41.3 MB
MD597c33a4438393f271e6ee56a536a650d
Min SDK26
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA128:76:8C:A1:3B:67:7E:FA:0A:CC:A0:1F:6F:68:F4:0E:A8:BC:A8:66
SignerCN=Unknown, OU=Cornell, O=Cornell, L="ithaca,NY", ST=NY, C=US
Total downloads1,000,000
This version1,000,000
DeveloperCornell Lab of Ornithology
Age ratingEveryone
What's new in v3.3.4
- Added edge-to-edge display support for a cleaner, more modern look
- Minor bug fixes and performance improvements
- Minor bug fixes and performance improvements
Security scan
TRUSTED
- Developer signature verified 2026-04-16
- Signature SHA1 28:76:8C:A1:3B:67:7E:FA:0A:CC:A0:1F:6F:68:F4:0E:A8:BC:A8:66
- File MD5 97c33a4438393f271e6ee56a536a650d
How to install eBird by Cornell Lab v3.3.4 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 41.3 MB of free storage.
- Grab edu.cornell.birds.ebird_180.apk — hit the Download button above (41.3 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 97c33a4438393f27…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find edu.cornell.birds.ebird_180.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Unknown, OU=Cornell, O=Cornell, L="ithaca,NY", ST=NY, C=US. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open eBird by Cornell Lab — tap Open on the install screen, or find the eBird by Cornell Lab icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for eBird by Cornell Lab
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 8.0 Oreo or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.