One of the easiest to identify large birds in this area, is the Turkey Vulture (Cathartes aura), which is fairly common through out North America.
When they are sighted, gliding high on the thermals, they appear to hardly flap their wings at all, as thy maximize the currents of air to stay aloft.
The feathers of these birds are brownish-black, and in this picture you can see the
distinctive black and white pattern on the underside of the wings, this is unlike any other large bird in the area, and makes them easy to identify.
They have a 6ft wing-span, so they are really large and difficult to miss when they are nearby, although they could be mistaken for an eagle or other Raptor at a distance.
It is not easy to distinguish between the sexes, however, typically the female is slightly larger than the male.
These birds prefer to breed in out of the way places, usually in heavily wooded areas, building their rough nest in a cavity in a tree, on a rocky ledge or cave.
The white mottled eggs take around 4 - 5 weeks to incubate, with the nestlings taking a further 10 or 11 weeks to become fully fledged and ready to leave the nest.
In this picture, the red head is clearly visible and you can see that it is devoid of feathers, which is an evolutionary adaptation which makes it less likely to be soiled by the meat that the vulture is eating - making the whole process more sanitary.
Where we live, in Elgin County, we sometimes see these birds flying singly, but more often we observe them in groups of 6 - 16 individuals, as they circle around overhead.
Often, when I observe them, they seem to "wobble" to adjust themselves, and then they continue to glide, as they scan the ground for signs that would indicate that there is a meal to be had nearby.
I took this picture in the summer of 2006 when I saw 5 Turkey Vultures resting in a tree.
The picture is not very clear, but it shows several Turkey Vultures sunning themselves on a dead tree near the village of Iona, close to highway 3, west of St Thomas.
They prefer the meat of herbivorous animals (plant eaters) rather than the flesh of carnivores (meat eaters) such as dogs and foxes.
Turkey Vultures ONLY eat meat that is already dead and do not hunt or kill their own food, so they pose no danger to pets or small children.
They must be very successful in their particular niche, on their own special rung of the food chain ladder, as there are lots of them around!
My family always describes the Turkey Vultures as the "Clean-up Crew" as they take care of a wide variety of dead animals and use both their sight and sense of smell to guide them to their food.
Their diet is varied, ranging from the remains of an animal killed by predators, animals that die of natural causes, to animals killed by cars on area roads and includes squirrels, raccoons, rabbits and possums.
Until 1994, Turkey Vultures were classified with birds of prey, such as hawks and eagles, however, due to recent DNA analysis and other studies on anatomy, physiology, and behavior, vultures have been reclassified and placed in the stork family.
This picture of circling Turkey Vultures was taken in spring 2007 near Eagle, Ontario, and shows six individuals of what was a group of around 12 birds.
Interestingly, a group of Vultures on the ground is known as a "Venue" and Vultures circling in the air are a "Kettle".
Hawk Cliff, near Port Stanley, Ontario
This is one of the top places in Ontario to observe raptor migrations. In October 2005 over 3,000 Turkey Vultures were spotted in one day! The following day 62 Bald Eagles were sighted there also.
The Turkey Vulture Society Website
A great source of information for anyone interested in finding out more about these intelligent and fascinating birds, there are lots of questions and answers for the curious!
Bird-Info.com
Information on identifying birds in Ontario and the rest of North America, including the Turkey Vulture and many more
EEK! Environmental Education for Kids
This is an information site for children which gives clear, easy to understand info about fish, birds, reptiles and insects in North America