35 Hen Harrier, Northern Harrier

• A group of Hens is called a; Swarm / Harassment.
• They have also been known a Marsh Hawk or Ringed Hawk.
• Their diet is 95% small mammals, they will eat ducks and other marsh birds by drowning them.
• The male has a dull gray coloration with a white underside.
• The eyes are more to the front like an owl this places the ears more frontal as well which they use to hear their prey.
• They one of the only hawks that are polygyny, meaning they have multiple mates, one male will have up to 5 female mates.  The immature male is similar in coloration as the female so seeing a mature male is rare.  
• They nest and lay their eggs on the ground.
• In Nova Scotia they are year round residents, in most of the rest of northern Canada and Alaska they Swarm south in a Harassment. 
• This bird of prey can be seen flying low to the ground listening for its prey.