Tag Archives: habitat

Forests

Forests are the dominant terrestrial ecosystem of Earth and are distributed around the globe. Forests account for 75% of the gross primary production of the Earth’s biosphere and contain 80% of the Earth’s plant biomass. Net primary production is estimated at 21.9 gigatons carbon per year for tropical forests, 8.1 for temperate forests, and 2.6 for boreal forests.

Human society and forests influence each other in both positive and negative ways. Forests provide ecosystem services to humans and serve as tourist attractions. Forests can also affect people’s health. Human activities, including harvesting forest resources, can negatively affect forest ecosystems.

The Tufted Titmouse

The tufted titmouse is a small songbird from North America that is somewhat common, but still one of my favorite birds to watch all year long.

These birds have grey upperparts and white underparts with a white face, a grey crest, a dark forehead, and a short, stout bill; they have rufous-colored flanks, under the wings. The song is described as a whistled “peter-peter-peter.” (I am ready for Spring when they are among the first birds to start singing.) They make a variety of different sounds, most having a similar tone quality.

Their habitat is deciduous and mixed woods as well as gardens, parks, and shrub-land in the eastern United States; they barely range into southeastern Canada in the Great Lakes region. They are all-year residents in the area effectively circumscribed by the Great Plains, the Great Lakes, the Gulf of Mexico and the Atlantic Ocean. The range is expanding northwards, possibly due to increased availability of winter food at bird feeders. The birds are resident all year even in rural areas where there are few bird feeders, while it was noted in an early bird report around 1905 that many of these birds migrated south in winter.

They forage actively on branches, sometimes on the ground, mainly eating insects, especially caterpillars, but also seeds, nuts and berries. They will store food for later use. They tend to be curious about their human neighbors and can sometimes be spotted on window ledges peering into the windows seemingly to watch what’s going on inside. They tend to be a bit shyer when seen at bird feeders; their normal pattern there is to scout the feeder from the cover of trees or bushes, fly to the feeder, take a seed, and fly back to cover to eat it.

Tufted titmice nest in a hole in a tree, either a natural cavity, a human-made nest box, or sometimes an old woodpecker nest. They line the nest with soft materials, sometimes plucking hair from a live animal such as a dog. If they find they find shed snakeskin, they will try to incorporate pieces of it in their nest. Their eggs are under an inch long and are white or cream-colored with brownish or purplish spots. Sometimes, a bird born the year before remains to help its parents raise the next year’s young. The pair may remain together and defend their territory year-round. These birds are permanent residents and often join small mixed flocks in winter.