Birds in the long-tailed tit family spend most of their time in single-species flocks. For individual long-tailed tits, these flocks may be composed largely of related birds. Observers often first notice their presence on hearing constant chattering, the contact calls described as tsee-tsee-tsee (long-tailed tits) or pit-pit-pit (bushtit). Following this, a procession of single birds may typically be seen flying from one bush to another. In the evening, birds roost communally, with small groups lining up together on a suitable branch. If it is cold, they huddle shoulder to shoulder, with the flock's most dominant birds toward the middle of the row where most heat is retained. Long-tailed tits also have been observed roosting in holes in the ground.

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