Cyrus

I would think a harder time in being a breeder in that an adult male male needs to leave the family community of one breeding couple and find an unattached female in another group thus avoiding inbreeding.

I.  No. 2.  Canadian geese, Florida Sandhill Cranes, blackbirds, Purple Martins, Robins

1.  I would tell the neighbor that the many snakes, squirrels, chipmunks, racoons and opossums in the area are the greatest threat to songbird nestlings. 2.  A murder of 6 to 8 crows permanently reside in my rural gated community that prohibits discharge of firearms.  I live above a bluff line that defines Cane Creek gorge of Fall Creek Falls State park.  A pasture with small lakes lie above my property.  On the end of my property with state park, a crow nest was built in the crotch of Black Oak some 70 feet above the ground.  Three crows with much chatter tended the nest when the fledglings took flight. 3.  I live on southern Cumberland Plateau (mid-eastern Tennessee) where the crows, vultures and raptors are common.  The raven is seen east of the Cumberland Plateau along the Appalachian range. 4.  A lookout crow sounds a warning to group of crows below that other birds and animals hear that a predator or human intruder has been spotted.