Showing posts with label hawks. Show all posts
Showing posts with label hawks. Show all posts

Saturday, July 31, 2010

Doves and Hawks

While out in the garden last Saturday, I watched a pair of Mourning Doves build their nest in the limbs of a nearby oak. Turns out our garden is kind of like a Home Depot for doves -- with an endless supply of building materials.

It was a pretty pastoral scene, the cool of early day, birds singing and a pair of doves making their family home. Occasional cooing floated down from the trees. I watched Mr. Dove as he glided down to the ground, loaded up with the biggest twig he could carry, then flew up to a roof and into the oak. The male dove gathers the twigs and the female builds the nest. You can't see it, but the doves' nest is just a few yards from the peak of the roof, hidden in the oak branches.

Doves and particularly doves with twigs in their beaks are symbols of peace and rest. It was a dove who found land and brought Noah the olive twig signifying the end of the flood. When Picasso wanted to symbolize peace, he drew a dove. And, this beautiful July morning it was easy to understand why as I watched the doves go about their business.

So, here we were, the doves and I. Peace and contentment abounded.

But, (cue Jaws theme) a predator was watching.

Doves are a favorite food of the Cooper's Hawk. The hawks soar overhead looking for food, looking for doves.

And they hide in trees, surveying the area for their next victim. Cooper's Hawks like to hunt with sudden dashes from a concealed perch and swoop in low to snare their victim.


Cooper's Hawks have incredible eyesight -- 20/2 or eight times better than excellent human vision. While we could walk right by this dove and not even notice it, the hawk would see the dove clearly from afar.

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So, there I was -- watering and happy to watch the dove come and go. The dove was pecking around for twigs not more than fifteen feet away. I can't speak for the dove, but I had no idea of the danger that lurked nearby.

Then it happened. Seemingly out of nowhere, a hawk swooped down from behind me, veering around my right side about waist high. He came so close that I felt a small breeze and an instant chill. Had I lifted my arm, I would have hit the hawk.

As he swooped around in front of me, I recognized the Cooper's Hawk. I watched as the hawk flew low, aiming straight for the dove, talons down.

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The harsh reality is that being a dove is high risk. Mortality is high. Six of ten adult doves die each year from predators and other causes. The risk is even higher for young doves. But, the circle of life is in high gear. Doves are prolific breeders, raising up to six broods a year, and are among the more abundant birds.

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If caught by a Cooper's Hawk, a dove's fate is not pretty. The hawk's talons are strong and needle sharp. The hawk wraps its talons around its prey and then, in mid-air, kills its prey by repeatedly squeezing it.

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I don't know how often a dove can evade a swooping Cooper's Hawk. But that is what happened. Fortunately for the dove, it was standing near an apricot tree and even more fortunate for him, he saw the hawk. As the hawk swooped down toward the ground and stretched out its talons, the smaller bird darted behind the apricot. By the narrowest of margins, the hawk missed and the dove got away.

With one powerful flap of its wings, the hawk rose up and over the fence. As quickly as it had appeared, the hawk was gone.

Sunday, July 11, 2010

Cooper's Hawks

Cooper's Hawk perched Saturday morning on a low lying oak branch.

Anyone know if this is a juvenile hawk?

I haven't found it, but there is a nest somewhere in our neighborhood. Mornings and evenings we hear the hawks screeching and occasionally spot the family of hawks flying overhead. I've seen two adult hawks and at least two juveniles.

It might look like I've turned this photo on its side. But, other than cropping the photo, this is the real deal -- a young hawk flying straight up. When I took this, there were three hawks in my field of vision -- an adult hawk soaring above, another juvenile darting sideways, and this one who took the up elevator.

I posted a year ago about Cooper's Hawks and had better luck at getting a clear photo. Last year's post also has some background on this amazing bird.

Wednesday, July 15, 2009

Hawks Continued

I've learned that it can be difficult to identify particular types of hawks. But, thanks to Tamara, who commented on my earlier hawk post, this appears to be a Cooper's Hawk. The bird is about crow-sized and has the white tips at the end of the tail feathers. More identification stuff here.

All about birds has some great background on the Cooper's Hawk. They are "among the world's most skillful fliers" because of how they can weave around tree branches in pursuit of prey. They eat other birds, including doves, which we have see a lot around here. They also eat small rodents. Cooper's Hawks have strong feet and kill their prey by grabbing it with their feet and squeezing it. They've even been known to drown their prey by holding it underwater. Another bird site says hawks, in general, have eyesight 2-3 times better than ours. Unlike other birds, the eyes of hawks and other birds of prey are set to look forward rather than on the side of their head. They mate for life and can reuse nests year after year.


This is a bit far afield. But, Cooper's Hawk is named after William Cooper, a "conchologist," who studied mollusks and other animal life. He collected specimens of many animals including a newly found type of hawk.

Tuesday, July 7, 2009

Hawks

Early Sunday morning I caught these two hawks perched on top of the power pole in front of our house. It is not uncommon to see hawks soaring high in the air. But, I rarely see them this close.


Later in the day the two hawks perched in our Jacaranda tree.

I've hunted over the web and can't definitively identify what type of hawk this is. Apparently Red Tailed hawks are the most common types of hawks. I didn't see a red tail here, but strangley enough red tailed hawks don't always have visibly red tails. Anyone know what kind of hawk this is?