For the Birds — Michelle L. Levigne

Before Genys Arroyan was captain, and M'kar was Chief of Talents and Treinna was head of linguistics and Jasper was chief engineer … in the golden years under Captain Rob Hollis's leadership … A dark shadow from the crewmates' past shows up to make life and a new, precarious mission difficult for the junior officers of the Defender. A nomadic fleet grudgingly agrees to host a diplomatic team from the Alliance.  M'kar's animal-focused Talent is needed to help the ambassador leave the flagship when the birds that inhabit and overwhelm and perhaps even run the ships of the fleet … won't let him leave.