Birds of Eliza Howell: Monthly Variations

Over the years, I have seen 145 different species of birds in Eliza Howell Park.

In January, 2018, I saw 22 species.

Both numbers are important. The total number of birds recorded is an important indication of the diversity of birds that visit the park. The monthly number is important for human visitors interested in observing birds at a particular time of the year.

The birds of Eliza Howell can be placed in the following categories:

(1) All seasons (or year-round residents). These species can be found in the park all seasons of the year (though not usually in the same numbers at all times). They do not migrate north-south or, if they do migrate, Eliza Howell is within both their summer and their winter range.

Approximately 21% of total species are all-seasons birds.

An example of an all-seasons EH bird is the Red-tailed Hawk.

Red tail hawk

          Photo by Margaret Weber

(2) Summer only. These species can usually be found in the park in the breeding season and are typically seen between spring and fall. They are birds that migrate south for the winter, but their summer range includes Eliza Howell.

Approximately 33% of total species are summer only.

The Rose-breasted Grosbeak is one such species.

rose-breasted grosbk 2010

          Photo by Margaret Weber

(3) Migrants. These are the migrating species that breed further north and winter further south. They are in this area only as they pass through and can normally be found in a short timeframe – a couple weeks to a month or so. The peak spring migration through Detroit occurs in May and the peak fall migration month is in September. Some species pass through in April and October.

Approximately 41% of the total species are migrants.

The Magnolia Warbler is one of many migrating warblers that stop briefly in Eliza Howell each year.

Magnolia warbler

 

 

 

 

 

          Photo by Margaret Weber

(4) Winter visitors. These few species spend the breeding season further north and migrate south for the winter. The “south” for these species includes the Detroit area. They arrive in fall and leave in spring.

Approximately 5% of the bird species are winter visitors.

The American Tress Sparrow is one of the 5%.

tree sparrow 0111-1

          Photo by Margaret Weber

Group 3 is the only one referred to a “migrants” above, but species in groups 2 and 4 also migrate twice annually; however, they stay much longer. While the migrants that pass through in the spring and fall are the most numerous, they can easily be missed because they are in the area only for a short rest and refueling stop.

The most species are usually seen in September and May because all-seasons birds, most summer residents, and many migrants can be found in these months.

Average number of species seen per month over 13 years (2005 – 2017):

  • January       = 19
  • February    = 16
  • March         = 31
  • April            = 45
  • May             = 64
  • June             = 45
  • July              = 42
  • August        = 51
  • September = 69
  • October      = 55
  • November  = 32
  • December  = 24

Based on experience, I have a very good idea what birds to expect each time I visit Eliza Howell. But nature is always somewhat unpredictable, so I also expect the unexpected.

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