资讯

Jackdaws make so much noise in the morning because they are trying to reach an agreement on when to fly off together, according to a new study. A group of the black birds is known as a ...
This balance between vigilance and deep sleep helps them stay aware of danger while still getting some much-needed shut-eye. However, a new study of European jackdaws shows that this strategy has its ...
Jackdaws have distinctive calls that sound like “tchaw, tchaw” or “tchack, tchack.” nwinograd via iNaturalist under CC BY-NC 4.0 It is quite remarkable to witness hundreds, even thousands ...
Jackdaws ditch old friends and make new ones if it helps them get rewards -- but stick with family through thick and thin, new research shows. Jackdaws ditch old friends and make new ones if it ...
Biologists already knew the corvid family–it includes crows, ravens, rooks, magpies and jackdaws–to be among the smartest of all birds. But this remarkable piece of behavior–it features in ...
Get Instant Summarized Text (Gist) European jackdaws, when sleep-deprived, prioritize deep, symmetrical sleep over vigilance, even at the cost of increased vulnerability. Unlike their usual ...
Sleep-deprived jackdaws spent more time in deep, symmetrical sleep – especially early in the night, when the need to recover is greatest. As most people who have pulled an all-nighter will agree ...
From the outside, it looks like these jackdaws steal the fur from the sika deer to build their nests. However, it’s not stealing when the sika deer gets something more than just a haircut.
On the roof of my house the jackdaws are back on an old chimney pot we keep open for them. The pair make their presence felt during the colder months, but they move in full-time around March to ...
Cheeky jackdaws at Longleat are pinching camel hair for their nests. The birds are taking advantage of the annual moult of the Wiltshire Safari Park's Bactrian camels, which shed their thick ...