White-winged Terns: Welcome Visitors

I have, it must be said, been hanging off making this post. I was hoping, somewhat against hope, the I’d get another day down at the WTP with these delightful birds, but sad to say, the season has changed, the birds are on the move, and the fickle weather has finally arrived with some decent rain for the hard stressed environment.

White-winged Terns, (used to be called White-winged Black Tern for obvious reasons), pay a visit to the south over the mid-of-summer through most of autumn. They feed  up on the rich supply of insects along the bunds and over the waters at the treatment plant. I suspect we see somewhere between 50-100 of them over the period.

The breeding birds also begin to colour up readying for their trip north.  They are not huge migrants, like say Red-necked Stints, but still their journey north will take them into South-East Asia, and as far as China and India. Hard to find definitive data. There is also a branch of the family that breeds as far up as northern Europe. I think they spend the summer around the Mediterranean.

We all, I suppose, have birds that intrigue us to one extent or another, and White-winged Terns are one of those birds for me.  I think mostly because of their consistent habit, and their lovely changeable plumage. Most seasons they seem to work in just a few ponds at the WTP, it changes a bit with the food source, but most times if they are locatable, and not on far-off ponds that have no access, they present a wonderful show of hunting close into the edges of the ponds and over the grass verges.  Making it easy to get closeups, if and I did say, if, I can keep them in the viewfinder.  Like all terns the flight path is not erratic, but certainly not predictable.

We have had several sessions with the birds, and rather than try and explain it all, the following shots should speak volumes for the beauty and delicate nature of these birds.
Hopefully it might also show just a little bit of my interest and enjoyment of their visit and how much I appreciate such a challenging subject.

Enjoy.

Part of a larger flock on the move. It shows the various moultings from almost white juveniles to near black-bodied adults.
Food off the water, or…
… In the air
They also are called, “Ear muff terns” by some folk because of the little black markings behind the eye
Easy to image how impressive they will be in full breeding moult

Till next year, travel well little birds, your visit was most appreciated.