diff --git a/website/client/src/components/notifications.vue b/website/client/src/components/notifications.vue
index 2960b0889e..77de66ef28 100644
--- a/website/client/src/components/notifications.vue
+++ b/website/client/src/components/notifications.vue
@@ -450,6 +450,14 @@ const NOTIFICATIONS = {
       achievement: 'zodiacZookeeper',
     },
   },
+  ACHIEVEMENT_BIRDS_OF_A_FEATHER: {
+    achievement: true,
+    label: $t => `${$t('achievement')}: ${$t('achievementBirdsOfAFeather')}`,
+    modalId: 'generic-achievement',
+    data: {
+      achievement: 'birdsOfAFeather',
+    },
+  },
 };
 
 export default {
@@ -514,6 +522,7 @@ export default {
       'ACHIEVEMENT_RED_LETTER_DAY', 'ACHIEVEMENT_LEGENDARY_BESTIARY', 'ACHIEVEMENT_SEASONAL_SPECIALIST',
       'ACHIEVEMENT_VIOLETS_ARE_BLUE', 'ACHIEVEMENT_WILD_BLUE_YONDER', 'ACHIEVEMENT_DOMESTICATED',
       'ACHIEVEMENT_SHADY_CUSTOMER', 'ACHIEVEMENT_SHADE_OF_IT_ALL', 'ACHIEVEMENT_ZODIAC_ZOOKEEPER',
+      'ACHIEVEMENT_BIRDS_OF_A_FEATHER',
     ].forEach(type => {
       handledNotifications[type] = true;
     });
@@ -948,6 +957,7 @@ export default {
           case 'ACHIEVEMENT_SHADY_CUSTOMER':
           case 'ACHIEVEMENT_SHADE_OF_IT_ALL':
           case 'ACHIEVEMENT_ZODIAC_ZOOKEEPER':
+          case 'ACHIEVEMENT_BIRDS_OF_A_FEATHER':
           case 'GENERIC_ACHIEVEMENT':
             this.showNotificationWithModal(notification);
             break;
diff --git a/website/common/locales/en/achievements.json b/website/common/locales/en/achievements.json
index a5ab0beb81..8e86fdf717 100644
--- a/website/common/locales/en/achievements.json
+++ b/website/common/locales/en/achievements.json
@@ -126,5 +126,8 @@
   "achievementShadeOfItAllModalText": "You tamed all the Shade Mounts!",
   "achievementZodiacZookeeper": "Zodiac Zookeeper",
   "achievementZodiacZookeeperText": "Has hatched all the zodiac pets: Rat, Cow, Bunny, Snake, Horse, Sheep, Monkey, Rooster, Wolf, Tiger, Flying Pig, and Dragon!",
-  "achievementZodiacZookeeperModalText": "You collected all the zodiac pets!"
+  "achievementZodiacZookeeperModalText": "You collected all the zodiac pets!",
+  "achievementBirdsOfAFeather": "Birds of a Feather",
+  "achievementBirdsOfAFeatherText": "Has hatched all the flying pets: Flying Pig, Owl, Parrot, Pterodactyl, Gryphon, and Falcon.",
+  "achievementBirdsOfAFeatherModalText":"You collected all the flying pets!"
 }
diff --git a/website/common/script/content/achievements.js b/website/common/script/content/achievements.js
index 7d798eb638..b8f7ba8aab 100644
--- a/website/common/script/content/achievements.js
+++ b/website/common/script/content/achievements.js
@@ -272,6 +272,11 @@ const basicAchievs = {
     titleKey: 'achievementZodiacZookeeper',
     textKey: 'achievementZodiacZookeeperText',
   },
+  birdsOfAFeather: {
+    icon: 'achievement-birdsOfAFeather',
+    titleKey: 'achievementBirdsOfAFeather',
+    textKey: 'achievementBirdsOfAFeatherText',
+  },
 };
 Object.assign(achievementsData, basicAchievs);
 
diff --git a/website/common/script/content/constants/animalSetAchievements.js b/website/common/script/content/constants/animalSetAchievements.js
index 5bdd8e039d..004ef1100a 100644
--- a/website/common/script/content/constants/animalSetAchievements.js
+++ b/website/common/script/content/constants/animalSetAchievements.js
@@ -11,6 +11,19 @@ const ANIMAL_SET_ACHIEVEMENTS = {
     achievementKey: 'legendaryBestiary',
     notificationType: 'ACHIEVEMENT_LEGENDARY_BESTIARY',
   },
+  birdsOfAFeather: {
+    type: 'pet',
+    species: [
+      'FlyingPig',
+      'Owl',
+      'Parrot',
+      'Pterodactyl',
+      'Gryphon',
+      'Falcon',
+    ],
+    achievementKey: 'birdsOfAFeather',
+    notificationType: 'ACHIEVEMENT_BIRDS_OF_A_FEATHER',
+  },
   domesticated: {
     type: 'pet',
     species: [
diff --git a/website/server/models/userNotification.js b/website/server/models/userNotification.js
index 4171b14cbe..c6b12351e7 100644
--- a/website/server/models/userNotification.js
+++ b/website/server/models/userNotification.js
@@ -71,6 +71,7 @@ const NOTIFICATION_TYPES = [
   'ACHIEVEMENT_SHADY_CUSTOMER',
   'ACHIEVEMENT_SHADE_OF_IT_ALL',
   'ACHIEVEMENT_ZODIAC_ZOOKEEPER',
+  'ACHIEVEMENT_BIRDS_OF_A_FEATHER',
   'ACHIEVEMENT', // generic achievement notification, details inside `notification.data`
   'DROP_CAP_REACHED',
 ];