Hi
RandyM:
There is no question that this plant is a
Euonymus alatus - probably 'Compactus' - as that plant is one of the most over-used shrubs in the midwest United States. It is known to be an invasive exotic pest species in some regions. I would not recommend increasing its numbers in your landscape.
Alternatively, if your goal is to provide cover for small birds in your landscape - which is a tremendously laudable reason - then you could select another species of shrub which can provide cover as well as make other seasonal contributions.
The shrub you've shown is so dense because it has been regularly sheared, and has produced multiple stems from each point where it was cut. This is a characteristic of many plants that are often used for hedges. I suggest you take a quick look at an Iowa Cooperative Extension Service publication (Iowa State University is your land grant university) or a similar institution from a state with similar growing conditions to Iowa (Nebraska, Minnesota, Wisconsin, Illinois would all suffice).
Deciduous Shrubs https://store.extension.iastat...
Pruning Shrubs https://store.extension.iastat...
Viburnums https://store.extension.iastat...
See what the range of shrubs are that handle shearing, produce dense twiggy canopies when sheared, and that flower/fruit/fall color nicely in Iowa. I think you will be surprised that there are likely at least a dozen choices that you could try.
Then, you can consider the variety of ways to make small birds happier and safer from life's traumas - by providing not only cover, but also a food source as well as nesting habitat and possibly even satisfying some neighborhood pollinators.