Short story. Probably appeared in Astounding or Analog, read in the 1970s or 1980s.
Earth gets invaded by aliens. The aliens (or their soldiers) are like giant tarantula hawks that capture people and take them back to their caves where they implant their eggs in the victims. The hero is a hunter who works with a telepathic eagle or hawk who tracks them to their lair and then has to keep them in the lair until help arrives.