This video from England says about itself:
From the Daily Express in Britain:
Ingham’s World: Feeding frenzy for Britain’s birds
DEEP in the reedbeds yesterday noisy little brown birds were busy embarking on a binge diet whose scale is normally seen only at the buffets of cruise ships.
By John Ingham
PUBLISHED: 09:28, Fri, Aug 14, 2015 | UPDATED: 09:46, Fri, Aug 14, 2015
Sedge warblers, whose manic song rattles over wetlands in spring, will nearly double their weight over the next three weeks in a frenzy of feasting.
They pile on the ounces by devouring aphids, storing up enough fuel for a longhaul migration south of the Sahara.
While many of you will still be looking forward to your summer holidays, for many of our birds it is autumn already.
Piratical skuas are streaming across the North Sea having quit their northern breeding grounds.
The vast majority of our swifts have lived up to their tag as the last summer visitors to arrive and first to leave.
Most of the British Trust for Ornithology’s satellite-tagged cuckoos are already south of the Sahara while the first pied flycatchers, redstarts and wheatears are gathering on the coast, preparing to head south for the winter.
And the RSPB magazine Nature’s Home reveals just how spectacular it can be.
This autumn about 1.5 billion birds will fly south from Europe and Asia’s western fringes to seek refuge in Africa.
Similar numbers will be on the move across the Americas, Asia and Australia. Between now and next spring our Arctic terns will clock up 25,000 miles as they head south for the Antarctic summer before returning here to breed.
Some species, such as swifts, will range widely, never once landing between quitting the nest and their return, sleeping on the wing above Africa’s jungles.
Dunlins – little waders – reach the UK from Greenland in three waves, females in July, males around now and the young next month.
As for sedge warblers, they store enough fuel from their food orgy to make the journey south across the Sahara in just one hop. So for sedge warblers greed is good.
No need to worry if the birds seem to have quit your garden. At this time of year the adults are moulting and skulking and there’s plenty of natural food in the woods and hedgerows.