Red-tailed Hawks

Location: Ithaca, NY

Camera Host: Cornell Lab

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April 13, 2017

Big Red Update: BR Continues to Scout

Thanks to updates from BOGs Karel and Bogette, we know that BR continues to make trips out of her usual territory. She has also been spotted making additions to nests at Weill and Fernow on occasion, but her visits are becoming less frequent than they've been in the past weeks. There's also news of BR spending time with other Red-tailed Hawks in the area. On Sunday, April 9th, she was seen traveling with another hawk to the Forest Home area in Ithaca, and BOG Suzanne Horning reports that she saw BR and another RTHA heading off together in the direction of Beebe Lake. We haven't heard of any recent courtship behavior, but it is encouraging to know that BR has been spotted with other hawks in the area.  

April 05, 2017

Big Red Update: Adding Sticks and Taking a Trip

Thanks to an update from BOGs Karel and BOGette, we know that Big Red has been keeping herself busy over the past few days. After spending this past Saturday industriously adding sticks to the Fernow Nest, Big Red was spotted taking multiple trips around Cornell grounds that were beyond her usual territory. The BOGs report that she surveyed multiple other Red-tailed Hawk territories in the vicinity and even had a few short, but seemingly nonaggressive, interactions with other hawks. According to the BOGs, these long flights are an interesting but unusual behavior for Big Red. After a quiet day on Monday, BR was spotted taking some bark to the nest yesterday on Tuesday, April 4 – likely the first of the season! We're still waiting to see how the 2017 breeding season will end up for Big Red, but it is interesting to know that she seems to remain committed to building up the nest and scouting the surrounding areas. A big thanks to Karel and BOGette for their continued updates on BR! 

March 30, 2017

BR Update: On the Hunt

Big Red continues to be a successful huntress! BOGs Karel and Bogette reported that Big Red caught a rabbit last night and finished about half of it before settling in to roost on Bradfield Hall. They also relayed that she returned this morning to grab the leftovers before heading towards the lake. We're all still interested to see what lies in Big Red's future this breeding season, and we'll continue to update as we learn more. (Photo credit: Karel and Cindy Sedlacek) 

March 28, 2017

Big Red glides into Fernow Nest from Stadium Lights

BR has been back and forth to the nest all morning, spending time perching around campus on trees and the stadium lights. 

March 27, 2017

Big Red Update: Stranger on the Nest

After a quiet weekend on the Fernow nest, it was a surprise to see an unknown Red-tail make a visit to the cam site just before midday. The unknown visitor only hung around for about 20 minutes before leaving the nest (see the clip), and the bird's stay was shortly followed up by a stint from Big Red. Thanks to an on-the-scene account from BOGs Karel and Bogette, we know that BR was joined by at least two other Red-tailed Hawks in the vicinity for about an hour. During this time, BR made trips to both the Fernow and Weill nest sites and participated in separate, seemingly non-aggressive, soaring events with each of the visiting Red-tails. BR has since been back to the Fernow nest on multiple occasions this morning (March 27). We will continue to provide updates on BR and the nest, as only time will tell what the future holds. 

March 23, 2017

Update on Big Red

Following the unfortunate news of Ezra's death, many people have been wondering what Big Red has been doing over the past couple of days, and we'd like to update everyone with the information we've received so far. Yesterday afternoon around 1:30 p.m., Birders on the Ground Karel and BOGette spotted Big Red and an unidentified Red-tail (presumably a male) engaged in an aerial courtship display over Beebe Lake. Suzanne Horning, another BOG, shared that she observed BR alight from the nest pole on campus and join another hawk heading back towards the lake later that afternoon. This event was followed by an additional BR sighting by Karel and BOGette in the evening near Beebe Lake where she was observed sunning herself and hunting. Finally, we were greeted with this view of Big Red's return to the on-camera nest near Fernow Hall earlier this afternoon. While it's refreshing to hear that BR is spending time with other Red-tails, only time will tell if she will secure another mate for this breeding season or nest in the same area. Little is documented about these situations, but a few observations suggest that a Red-tailed Hawk could acquire a new mate within as little 1-2 days after its previous mate's disappearance. We extend our deep gratitude to all of the BOGs who've updated us on Big Red's whereabouts and behavior. We will continue to update as we hear more. 

April 05

Big Red Update: Adding Sticks and Taking a Trip

Thanks to an update from BOGs Karel and BOGette, we know that Big Red has been keeping herself busy over the past few days. After spending this past Saturday industriously adding sticks to the Fernow Nest, Big Red was spotted taking multiple trips around Cornell grounds that were beyond her usual territory. The BOGs report that she surveyed multiple other Red-tailed Hawk territories in the vicinity and even had a few short, but seemingly nonaggressive, interactions with other hawks. According to the BOGs, these long flights are an interesting but unusual behavior for Big Red. After a quiet day on Monday, BR was spotted taking some bark to the nest yesterday on Tuesday, April 4 – likely the first of the season! We're still waiting to see how the 2017 breeding season will end up for Big Red, but it is interesting to know that she seems to remain committed to building up the nest and scouting the surrounding areas. A big thanks to Karel and BOGette for their continued updates on BR! 

March 21

Sad News about Ezra.

As some of you may know, Ezra has not been seen on the Cornell Hawks cam or on the Cornell campus for the past several days, and worries have been mounting. We are extremely sad to have to share the news with you that we learned this evening that Ezra has died. Please click "More" to read the full story and share your thoughts and memories of Ezra in pictures or words in the enhanced commenting section. More...

Red-tailed Hawk

Tree

Nest Placement

Red-tailed Hawks typically put their nests in the crowns of tall trees where they have a commanding view of the landscape. They may also nest on a cliff ledge or on artificial structures such as window ledges and billboard platforms.

Nest Description

Both members build the nest, or simply refurbish one of the nests they’ve used in previous years. Nests are tall piles of dry sticks up to 6.5 feet high and 3 feet across. The inner cup is lined with bark strips, fresh foliage, and dry vegetation. Construction takes 4-7 days.

Clutch Size

1-5 eggs

Incubation Period

28-35 days

Nestling Period

42-46 days

Egg Description

White or buffy, blotched or speckled with buff, brown, or purple.

Condition at Hatching

Tiny and helpless, unable to raise head, and weighing about 2 ounces.

Small Animals

Food

Mammals make up the bulk of most Red-tailed Hawk meals. Frequent victims include voles, mice, wood rats, rabbits, snowshoe hares, jackrabbits, and ground squirrels. The hawks also eat birds, including pheasants, bobwhite, starlings, and blackbirds; as well as snakes and carrion. Individual prey items can weigh anywhere from less than an ounce to more than 5 pounds.

Typical Voice

Adults make a hoarse, screaming kee-eeeee-arr. It lasts 2-3 seconds and is usually given while soaring. During courtship, they also make a shrill chwirk, sometimes giving several of these calls in a row.more sounds

See full Species Info at All About Birds

About the Nest

A Red-tailed Hawk pair has been nesting above Cornell University’s athletic fields since at least the 2012, making use of two different light towers for their nest sites. In 2012 and 2015, they used a tower near Fernow Hall, and in 2013, 2014, and 2016, they used the tower nearest Weill Hall. We installed cameras at both of these sites to get a better look at the intimate behavior of these well-known birds as they raise their young amid the bustle of a busy campus.

Big Red and Her Former Mate

BigRed-ThreeEggs-600x350The female, nicknamed “Big Red” in honor of her alma mater, is slightly larger, with a darker head, nape and throat, and is banded on her right leg. From banding records we know she was banded in nearby Brooktondale, New York, during her first autumn in 2003.

 

20130315-EzraOnNest

Big Red’s former mate, named Ezra after the co-founder of Cornell University, died in March 2017 (read about his legacy here). He and Big Red had raised successful broods every year from 2012–2016. He was a bit smaller and had golden-tawny feathers on his face and head. He also had a paler neck than the female. He was first banded in 2006 as an adult bird on Judd Falls Road near the Cornell campus.