The invention relates to a recombinant Gallid herpesvirus 3 vector encoding heterologous avian pathogen antigens comprising one or more heterologous polynucleotide(s) inserted into the intergenic loci UL3/UL4 and/or UL21/UL22. The invention further relates to vaccines comprising said recombinant Gallid herpesvirus 3 vector and optionally a further Marek's disease virus vector and to a use of the vaccine for protecting an avian species against one or more avian pathogens. Further methods for treating an avian species for protection against one or more diseases caused by avian pathogens and a method for producing the recombinant Gallid herpesvirus 3 vector encoding heterologous avian pathogen antigens is provided.
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