Habitat selection is a decision-making process that birds use to select a habitat in which they live. It is crucial for individuals to make the correct choices, because their living space directly affects their fitness. When making settlement decisions, birds are faced with uncertainty about habitat quality. In order to reduce it, they have to acquire information, which makes their world more predictable. Acquisition and use of information about habitat quality is the central part of the habitat selection process. Individuals can acquire information about habitat quality in various ways, e.g., by using own breeding experience (personal information), or by observing behavior and decisions made by other individuals (social information). In this review I briefly described the types of social information which songbirds use to assess the habitat quality. By using unified approach, I evaluated their value and availability for individuals, concluding that simultaneous use of several types of information provide the most effective way to habitat quality assessment. Furthermore, I argued why tits (Paridae) constitute a crucial link in the chain of interspecific social information transfer within songbirds’ communication networks throughout the Holarctic and suggested that they may be considered as the keystone cue-providers. Moreover, I evaluated current literature on the artificial-attraction methods and highlighted urgent research needs in context of its practical application in the conservation and management of songbirds populations.