Actually, they aren't. They may look that way because it may be cool in the spring, and they fluff their feathers to trap heat, making them look fat. They probably weigh less in the spring because of short winter food supplies.
Mid to late spring for first clutches of the American robin. Robins may be double brooded in southern areas.
A Robin. Yes and no. Actually, a Red-winged Blackbird is more of a sign of Spring. Google it...! Robins are around in winter, but they usually just go deeper into the forests.
No robins can swim but they can fly
robins and sparrow have differents types of bases
Bears put on fat during the autumn in order to hibernate (sleep) and live off their fat over the winter months. They wake in the spring and are thin and hungry. Female bears give birth whilst in hibernation.
It is unlikely that Robins eat fat balls. In all the years I have had fat balls in the garden for the wild birds I have not seen a Robin pecking at them.
no only in the spring
Summer and spring.
no you dont
usually winter, but they do seem to pop up in the winter-European Robins (Erithacus rubecula) American Robins, always come out during the start of spring.
none
none
A "one effect of robins breeding grounds" early is frozen baby robins....if that's what your weird grammar is asking.
In spring, robins mainly nest and eat search for food. They eat mostly insects, berries from vines and bushes and more. That is what birds do in the spring.
They have to love and care for each other then in spring they have a baby(s)
Robins nest in spring, and may raise two broods in southern states.
The species is double brooded in the South.