Tuesday, July 13, 2010

Black Swan


Did you Know:

Bearing

When swimming, black swans hold their necks arched or erect, and often carry their feathers or wings raised in an aggressive display. In flight, a wedge of black swans will form as a line or a V, with the individual birds flying strongly with undulating long necks, making whistling sounds with their wings and baying, bugling or trumpeting calls.

Nesting and reproduction

Generally, black swans nest in the wetter winter months (February to September), occasionally in large colonies. A typical clutch contains 4 to 8 greenish-white eggs that are incubated for about 35–40 days. After hatching, the cygnets are tended by the parents for about 6 months until fledging, and may ride on their parent's back for longer trips into deeper water.

A black swan nest is essentially a large heap or mound of reeds, grasses and weeds between 1 and 1.5 metres (3-4½ feet) in diameter and up to 1 metre high, in shallow water or on islands. A nest is reused every year, restored or rebuilt as needed. Both parents share the care of the nest. Like other swans, the black swan is largely monogamous, pairing for life (about 6% divorce rate). Recent studies have shown that around a third of all broods exhibit extra-pair paternity. An estimated one-quarter of all pairings are homosexual, mostly between males. They steal nests, or form temporary threesomes with females to obtain eggs, driving away the female after she lays the eggs.

Did you know research from Wiki. Photograph taken by Craig Glenn at Lake Eola Park in downtown Orlando.


Thanks for stopping by,

Craig Glenn

7 comments:

This Is My Blog - fishing guy said...

Craig: Neat shot of the swan, so nicely captured.

Country Mouse Studio said...

What a beautiful bird, I've not seen a close up before.

Bird Girl said...

You know - most of the black swans I"ve seen are just not very attractive. But you sure made this one beautiful!!! That first shot is so nice I can't believe it!

Craig Glenn said...

Thanks for the kind comments everyone!

Craig Glenn

KaHolly said...

Just beautiful! I have never had the pleasure of seeing a black swan. So pretty! ~karen

SAPhotographs (Joan) said...

They are so beautiful Craing and the photo of it with the grass/weed in the mouth is stunning. You also have wonderful information with your post.

Kerri said...

I have NEVER seen a black swan in person. What a beauty!