rook

corvus frugilegus

• One of Britain's largest resident land birds
   
• Feed in flocks and return to roost all together in long, straggly lines
   
• Black all over
   
• Look for the groups of scruffy nests of sticks (rookeries) at the tops of tall trees.
   

Where found

Common in all but the very north of Scotland. Farmland, fields where there are plenty of woods and trees.
 

Record seasonal events

You can help scientists monitor the effect of climate change on rooks by telling us the dates when you first see them nest building where you live

• Nesting starts in February-March before the first leaves appear on trees