04/19/2018
Ferruginous hawk
I am an amateur bird watcher, and an amateur photographer, and sometimes identifying birds can be confusing. Because I am most fascinated by raptors, I find hawks to be particularly difficult to distinguish between. It seems like the more I learn, the less I seem to know!!
The Ferruginous hawk, while fairly common to our area, is often confused with the Red-tailed hawk. The Ferruginous can be identified by its feathers which cover their legs (chaps); a perched bird has a white breast and body with dark legs; back and wings are brownish rust in color, and the head is white with a dark streak extending behind the eye. For identification, always remember that the hawk has a streak that extends back on the face, and falcons have a streak that goes down! The male and female look exactly alike, with the female being larger. They grow up to 27 inches long, with a wingspan up to 60 inches, and close to 5 pounds.
Their diet is comprised mostly of small to medium mammals, but will also prey on birds, reptiles and some insects. So, as most raptors, they play an important role in our ecosystem controlling the rodent population.
The Ferruginous hawk is quite adaptable when it comes to nesting. They will build most anywhere including trees, ledges, rock outcrops, ground, haystacks, platforms, etc. Their nesting material includes sticks, branches, and cattails. When nest building begins, so does copulation. Both the male and female build the nest, and both incubate the eggs.
The female will lay up to 8 eggs, they will hatch in approximately 40 days, and the male chicks fledge first, then the females at around 40-50 days.
Ferruginous hawks can live up to 20 years in the wild, however, many of the birds do not make it past the first year with a 66% mortality rate. Mortality reasons include illegal shooting, harassment, predation, and starvation. Ground nests are susceptible to predation by coyotes, while nestlings may be preyed upon by great horned owls and golden eagles.
Jan Ramelli
Wildlife Photographer