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Birds play a role in maintaining tick-borne diseases by contributing to the multiplication of ticks and pathogens on a local scale during the breeding season. In the present study, we describe the diversity of tick and pathogen species of medical and veterinary importance in Europe hosted by 1040 captured birds (56 species) during their breeding season in France. Of the 3114 ticks collected, <i>Ixodes ricinus</i> was the most prevalent species (89.5%), followed by <i>I. frontalis</i> (0.8%), <i>I. arboricola</i> (0.7%), <i>Haemaphysalis concinna</i> (0.5%), <i>H. punctata</i> (0.5%), <i>Hyalomma</i> spp. (0.2%), and <i>Rhipicephalus</i> spp. (0.06%). Because they may be representative of the bird infection status for some pathogen species, 1106 engorged tick larvae were screened for pathogens. <i>Borrelia burgdorferi</i> sensu lato was the most prevalent pathogen genus in bird-feeding larvae (11.7%), followed by <i>Rickettsia</i> spp. (7.4%), <i>Anaplasma</i> spp. (5.7%), <i>Babesia</i> spp. (2.3%), <i>Ehrlichia</i> spp. (1.4%), and <i>B. miyamotoi</i> (1%). <i>Turdidae</i> birds (<i>Turdus merula</i> and <i>T. philomelos</i>), <i>Troglodytes troglodytes</i>, and <i>Anthus trivialis</i> had a significantly higher prevalence of <i>B. burgdorferi</i> s.l.-infected larvae than other pathogen genera. This suggests that these bird species could act as reservoir hosts for <i>B. burgdorferi</i> s.l. during their breeding season, and thus play an important role in acarological risk.