Over the last year or so, I've been observing house sparrows,because they are so prevalent in the northeast US cities. I noticedthat a lot of sparrows, even in different cities seem to have verysimilar body language for communicating. I learned 3expressions
Here's an example of a sparrow feeding their young. The youngbird opens month and flickers its wings in what I can only describeas impatiently.
A sparrow swipes its beak along a surface at its feet -something food related?
A sparrow fluffs its feathers, turning into something like atennis ball made of feathers.
I'm looking at this video of a sparrow raised in captivity, andit does 2 out of 3 expressions described here.
What interests me is if expressions like these are "localdialects" or universal, thus found across different geographies andtimes? for example, do sparrows in northeast US use the sameexpressions as sparrows in Australia? What about sparrows in theUnited Kingdom in the 1950s?
Over the last year or so, I've been observing house sparrows,because they are so prevalent in the northeast US cities. I noticedthat a lot of sparrows, even in different cities seem to have verysimilar body language for communicating. I learned 3expressions
Here's an example of a sparrow feeding their young. The youngbird opens month and flickers its wings in what I can only describeas impatiently.
A sparrow swipes its beak along a surface at its feet -something food related?
A sparrow fluffs its feathers, turning into something like atennis ball made of feathers.
I'm looking at this video of a sparrow raised in captivity, andit does 2 out of 3 expressions described here.
What interests me is if expressions like these are "localdialects" or universal, thus found across different geographies andtimes? for example, do sparrows in northeast US use the sameexpressions as sparrows in Australia? What about sparrows in theUnited Kingdom in the 1950s?
