منابع مشابه
Dunking behaviour in Carib grackles
Dunking behaviour, the dipping of food in water, has been anecdotally observed in more than 25 species of birds in the wild, but its function and ecology have not been systematically studied. In experiments conducted in the field and in captivity on Carib grackles, Quiscalus lugubris, in Barbados, we showed that: (1) dunking rate in the field was influenced by food type and that moistening dry ...
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—Barn Swallows (Hirundo rustica) historically nested along cliffs, in caves, and in other natural situations. Currently, nearly all reported nests of this species are on walls and beams of bridges, buildings, and other human-derived structures. Both natural and man-made nest sites typically share one thing in common: a horizontal surface for nest attachment. We describe a Barn Swallow nest that...
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متن کاملStealing of dunked food in Carib grackles (Quiscalus lugubris).
The use of tool or tool-like food processing behaviours can render animals vulnerable to theft (kleptoparasitism) because (1) large, nutritious items are usually involved, (2) value is added to the food due to long and/or complex handling, and (3) physical control of items is often temporarily lost during handling. In Barbados, Carib grackles (Quiscalus lugubris) immersing items in water before...
متن کاملFirst sight
But despite the portrait and interrogation by doctors in London, Jesty never received credit for his pioneering work, with all the credit and financial rewards going to Jenner with his many friends in the medical establishment in London who spent considerable time and money refining the technique. Jenner never accepted that he had been preempted over vaccination by Jesty. However, the Jestys fr...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1981
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay4461