One of the quality of life issues the city manages is controlling the deer population. With a plentiful food supply (your lawns), no natural predators (bobcats, anyone?) and plenty of natural cover (all that green space everyone wants more of), it's a perfect environment for a deer population explosion. It's a common problem in many suburban areas. There are several options to control the population as outlined on this page from the Wisconsin DNR, all with good and bad points. The city started a control program in 2002. It is summarized in the following chart.

There are some public safety issues as well. Deer can carry Lyme Disease, chronic wasting disease, and be the cause of auto accidents. This chart shows the deer/car collisions in the city. A "reportable" accident is an occurrence that originates or terminates on a traffic way that involves at least one motor vehicle in transport, and results in any of the following:
- Injury or fatality of a person
- Total damage to one person's property to an apparent extent of $1,000 or more
- Damage to government-owned property to an apparent extent of $200 or more, except government owned vehicles, where the threshold is $1,000 or more
A "non-reportable" accident is an occurrence that does not meet the above criteria. For example, a couple of years ago I was waiting behind a school bus for two deer to cross North Avenue by Wirth Park. My car was rear ended by a car whose driver was busy tuning the radio. It was not seen as deer related. Of course there are also accidents that don't get reported at all and thus can't be classified as reportable or non-reportable.
| Year |
Reportable |
Non-Reportable |
Total |
| 2000 |
60 |
21 |
81 |
| 2001 |
67 |
13 |
80 |
| 2002 |
43 |
21 |
64 |
| 2003 |
70 |
1 |
71 |
| 2004 |
32 |
16 |
48 |
| 2005 |
39 |
18 |
57 |
| 2006 |
40 |
8 |
48 |
| 2007 |
38 |
14 |
52 |
MJS, June 17, 2008 Deer - Jogger Collision
In the past, when a deer was live trapped it would be transported to a game farm. In an attempt to contain chronic wasting disease, DNR regulations have been changed to prohibit transport, so the trapped deer are now euthanized shortly after capture. Disposal of the carcasses has been problematic. At one time it was common to donate the venison (deer meat) to food pantries. Then there was a period of food pantries stating strong concerns over transmitting disease to people making it difficult to give the meat away. At this time the pendulum has swung back. Brookfield has always sent the meat to food processing plants and, after rigorous inspection, it is used for food. So, while Brookfield has always had the venison processed, it is not uncommon in other communities to bury the carcasses.
In January, 2008 the program cost $25,763. That works out to about $233/deer for sharpshooting (rifle) and about $400/deer for live trapping. The article linked to above indicates this is a bargain. The city is under tremendous pressure to reduce spending and taxes. This is an excellent example of a new program (started in 2002) with a continuing cost (new deer are born every year, so the deer population reduction continues every year) that is not absolutely essential (in the way a fireman is deemed to be) but is politically popular.
Should the deer control program be continued? You tell me!