diff --git a/handlers/scheduler.py b/handlers/scheduler.py
index d66d90a..cdf568b 100644
--- a/handlers/scheduler.py
+++ b/handlers/scheduler.py
@@ -1,12 +1,13 @@
 """Scheduler for daily birthday notifications."""
 import telebot
 from datetime import datetime
-from typing import Optional
+from typing import Optional, Dict, List, Tuple
+from collections import defaultdict
 from apscheduler.schedulers.blocking import BlockingScheduler
 from apscheduler.triggers.cron import CronTrigger
 import pytz
 from database import get_db_session, User, Chat, UserChat
-from messages import format_birthday_greeting
+from messages import format_birthday_greeting, format_multiple_birthdays_greetings
 from config import Config
 
 
@@ -27,7 +28,10 @@ def send_birthday_notifications(bot: telebot.TeleBot) -> None:
         if not users_with_birthday:
             return
         
-        # For each user, send greetings to all their chats
+        # Group users by chat: chat_id -> list of (first_name, theme, user_id)
+        chat_users: Dict[int, List[Tuple[str, str, int]]] = defaultdict(list)
+        
+        # For each user, find all their chats
         for user in users_with_birthday:
             # Get all chats where user is a member
             user_chats = db.query(Chat).join(UserChat).filter(
@@ -35,14 +39,14 @@ def send_birthday_notifications(bot: telebot.TeleBot) -> None:
                 Chat.bot_is_admin == True
             ).all()
             
-            greeting = format_birthday_greeting(user.first_name, user.preference_theme)
-            
             for chat in user_chats:
                 try:
                     # Check if user is still in chat
                     member = bot.get_chat_member(chat.chat_id, user.user_id)
                     if member.status not in ['left', 'kicked']:
-                        bot.send_message(chat.chat_id, greeting)
+                        chat_users[chat.chat_id].append(
+                            (user.first_name, user.preference_theme, user.user_id)
+                        )
                 except telebot.apihelper.ApiTelegramException as e:
                     # Handle errors: user blocked bot, bot removed from chat, etc.
                     if e.error_code == 403:
@@ -57,6 +61,31 @@ def send_birthday_notifications(bot: telebot.TeleBot) -> None:
                 except Exception:
                     # Other errors - continue
                     pass
+        
+        # Send greetings grouped by chat
+        for chat_id, users_data in chat_users.items():
+            try:
+                if len(users_data) == 1:
+                    # Single user - use simple format
+                    first_name, theme, user_id = users_data[0]
+                    greeting = format_birthday_greeting(first_name, theme, user_id)
+                    bot.send_message(chat_id, greeting, parse_mode='HTML')
+                else:
+                    # Multiple users - use special format
+                    greeting = format_multiple_birthdays_greetings(users_data)
+                    bot.send_message(chat_id, greeting, parse_mode='HTML')
+            except telebot.apihelper.ApiTelegramException as e:
+                # Handle errors: bot removed from chat, etc.
+                if e.error_code == 403:
+                    # Bot was blocked or removed from chat
+                    chat = db.query(Chat).filter(Chat.chat_id == chat_id).first()
+                    if chat:
+                        chat.bot_is_admin = False
+                        db.commit()
+                # Silently continue for other errors
+            except Exception:
+                # Other errors - continue
+                pass
     finally:
         db.close()
 
diff --git a/messages.py b/messages.py
index 2ff3a5a..4c15a01 100644
--- a/messages.py
+++ b/messages.py
@@ -38,6 +38,20 @@ def get_theme_emoji(theme: str) -> str:
     """Get emoji for the given theme."""
     return THEME_EMOJIS.get(theme, "🎉")  # Default emoji
 
+# Birthday greeting opening phrases (random variations)
+BIRTHDAY_GREETINGS = [
+    "С днем рождения",
+    "Поздравляю с днем рождения",
+    "С твоим днем рождения",
+    "Поздравляю тебя с днем рождения",
+    "Поздравляю с днем рождения",
+]
+
+
+def get_birthday_greeting_opening() -> str:
+    """Get a random birthday greeting opening phrase."""
+    return random.choice(BIRTHDAY_GREETINGS)
+
 # Birthday messages for each theme
 BIRTHDAY_MESSAGES = {
     "Автомобили": [
@@ -132,8 +146,43 @@ def get_birthday_message(theme: str) -> str:
     return random.choice(messages)
 
 
-def format_birthday_greeting(first_name: str, theme: str) -> str:
-    """Format a complete birthday greeting with emoji."""
+def format_birthday_greeting(first_name: str, theme: str, user_id: int) -> str:
+    """Format a complete birthday greeting with emoji and user link."""
     emoji = get_theme_emoji(theme)
+    greeting_opening = get_birthday_greeting_opening()
     message = get_birthday_message(theme)
-    return f"{emoji} С днем рождения {first_name}, {message}"
+    # Format: party popper + theme emoji + greeting + bold name with link
+    user_link = f"tg://user?id={user_id}"
+    return f"🎉 {greeting_opening}, <a href=\"{user_link}\">{emoji} <b>{first_name}</b></a>, {message}"
+
+
+def format_multiple_birthdays_greetings(users_data: list[tuple[str, str, int]]) -> str:
+    """Format greetings for multiple users celebrating birthday today.
+    
+    Args:
+        users_data: List of tuples (first_name, theme, user_id)
+    
+    Returns:
+        Formatted message with all greetings
+    """
+    count = len(users_data)
+    # Determine correct form of "человек"
+    if count == 1:
+        person_word = "человек"
+    elif count in [2, 3, 4]:
+        person_word = "человека"
+    else:
+        person_word = "человек"
+    
+    header = f"🎉 Сегодня день рождения отмечают {count} {person_word}:\n\n"
+    
+    greetings = []
+    for first_name, theme, user_id in users_data:
+        emoji = get_theme_emoji(theme)
+        greeting_opening = get_birthday_greeting_opening()
+        message = get_birthday_message(theme)
+        user_link = f"tg://user?id={user_id}"
+        greeting = f"<a href=\"{user_link}\">{emoji} <b>{first_name}</b></a> — {greeting_opening.lower()}, {message}"
+        greetings.append(greeting)
+    
+    return header + "\n\n".join(greetings)