Organic Future Series by Thomas A. Easton

First volume of the "Organic Future" series. The genetic engineers aren't about to stop with genetically modified food. It won't be long before they're playing with houses and vehicles too, and someone is trying to kill gengineer Emily Gilman! The Chickadee at the bird feeder is the size of a Piper Cub, a Sparrow airliner is gobbling Buggies on the highway, a Mack truck is lunging across the sidewalk, and detective Bernie Fischer is flying his modified Sparrowhawk to the rescue.

Half-human flowers are plotting to rule the world, Freddy the Pig is building a singing career, and Tom Cross is in hot pursuit of the Bioblimp that kidnapped his mother. The second book in Easton's "Organic Future" series.

Third volume of the "Organic Future" series. Freddy the Pig is now human, but the Luddite "Engineers" are determined to destroy him and all his genetically modified friends. If they can survive the concentration camps, there's a starship waiting. A prophetic foreshadowing of the current anti-genetic-engineering fervor.

Fourth volume of the "Organic Future" series. The gengineers have created a new intelligent species on the world of First-Stop, Tau Ceti IV. But before they can leave the Racs to their own destiny, Pearl Angelica, their plant-human hybrid emissary, must survive one last contact with Earth and its Luddite "Engineers."

Fifth volume of the "Organic Future" series. Centuries after the gengineers left First-Stop to their creations, the Racs, Earth's anti-gengineering fanatics are on their way to hunt down the gengineers and destroy all their works. Fortunately the Racs are on the verge of space travel. They have a fighting chance, if they can just stop fighting over whether tailed or tailless Racs were the first creations of their gods and learn to use the heritage the gengineers left behind.