Bird Profile

Northern Mockingbird

A gray, long-tailed, endlessly loud bird that will not eat your sunflower seed but may take over your feeder anyway. Fruit, mealworms and suet are what actually bring it in.

The Northern Mockingbird is a slim, pale gray songbird with a long tail, a habit of standing bolt upright on a wire or fence post, and a repertoire that runs from other birds to car alarms. It is one of the most familiar backyard birds in the southern half of the United States and the state bird of five states: Arkansas, Florida, Mississippi, Tennessee and Texas.

It is also the bird most likely to break a feeding station's social order. Mockingbirds do not eat seed, so nothing on a standard sunflower setup interests them, yet in fall and winter a single bird will often claim the area around a feeder as territory and spend the day chasing off cardinals, finches and doves that are simply trying to eat.

This profile covers how to separate a mockingbird from catbirds and shrikes, what it eats through the year, the foods and feeders that actually work for it, the two behaviors that generate the most questions (night singing and wing flashing), and what to do when one takes your feeder hostage.

How to identify a Northern Mockingbird#

A mockingbird is medium-sized, roughly the length of a Blue Jay but far slimmer, at 8.3 to 10.2 in (21 to 26 cm) with a tail that accounts for close to half of it. Weight runs 1.6 to 2.0 oz (45 to 58 g).

Plumage is plain by design: medium gray above, paler gray to dirty white below, with two thin white wingbars and a dark eye set in a pale face. The bill is fairly long, thin and slightly down-curved, nothing like a seed-cracking cone. Sexes look alike.

The marks that settle it are white and only show in motion. Each wing carries a large white patch at the base of the primaries that flashes open in flight and turns a gray bird into a startlingly black-and-white one. The outer tail feathers are white too, obvious as the bird spreads its tail on landing. A gray bird that flashes white in the wings and tail as it crosses a lawn is a mockingbird.

Confusion species

Where and when you will see mockingbirds#

Northern Mockingbirds are year-round residents across nearly all of the lower 48 states, most abundantly in the South and Southwest, and south through Mexico and the Caribbean. They are scarcer and patchier along the northern tier, where the range has crept northward over the past century alongside suburban development, hedge planting and multiflora rose.

Northern birds may drift a short distance south in winter, but this is not a migrant in any meaningful sense. If you have mockingbirds in Texas or Florida in June, you have them in January.

Habitat is open ground next to dense cover: lawns, parks, parking lot edges, hedgerows, roadside scrub and suburban yards. They are one of the very few native songbirds that genuinely benefit from mown grass, because they hunt insects by walking on short turf and retreat to a shrub between runs.

What mockingbirds eat#

The diet splits roughly by season. From spring through late summer, mockingbirds take mostly animal food: beetles, ants, grasshoppers, wasps, caterpillars, spiders, sometimes small lizards. They hunt by walking across open ground, pausing, then lunging.

From late summer through winter the diet shifts heavily to fruit. Wild favorites include hackberry, pokeweed, holly, wax myrtle, brambles, elderberry, juniper and multiflora rose hips. This shift is the key to understanding mockingbird behavior in your yard: an individual bird that ignored you all summer becomes intensely interested in the holly by your window in December, and will defend it.

Planting for that is more effective than any feeder. A yard with native fruiting shrubs, as covered in native plants for birds, holds mockingbirds through winter without a single tray of food.

The feeder setup mockingbirds use#

Forget seed. Mockingbirds have a thin insect-and-fruit bill and cannot crack sunflower hulls, so a tube feeder full of black oil sunflower is invisible to them. What works is an open surface with soft food on it.

• A platform or tray feeder is the right furniture. Mockingbirds want to stand and walk, not cling.
• Halved apples, oranges, grapes and softened raisins, offered on a spike or a tray; see fruit for birds for what keeps and what molds.
• Live or dried mealworms in a smooth-sided dish. Dried worms are more readily taken if you soak them first.
• Suet, especially crumbled or in dough form rather than a hard cake; the styles are compared in the suet guide.
• A soft fat spread pressed onto a tray or bark, as in seed cylinders and bark butter.
• Grape jelly in a shallow dish, offered sparingly. The same cautions in jelly for orioles apply: small amounts, clean dish, never in nesting season heat.

Water is the other reliable draw. Mockingbirds bathe often and conspicuously, and a shallow bird bath with moving water will pull them in where food does not.

The song, and why it happens at 2 a.m.#

Mockingbirds sing long, loud strings of borrowed phrases, and the delivery pattern is diagnostic: each phrase is repeated several times, typically three or more, before the bird switches to the next. A Gray Catbird runs through phrases once each. A Brown Thrasher usually gives each phrase twice.

Males keep learning through life, accumulating a large repertoire of imitated songs and calls, and they copy more than birds: frogs, dogs, sirens, car alarms and phone tones all show up. Both sexes sing, but males sing far more.

Night singing is what generates the complaints. It is mostly unmated males advertising for a female, so it is loudest in spring and early summer, tapers once a bird pairs up, and is more common where artificial light keeps the bird active. There is no humane fix beyond waiting the season out, closing the window and, if you can, reducing bright outdoor lighting near his song perch. He is not doing anything wrong.

Wing flashing and feeder aggression#

Wing flashing is the odd habit where a mockingbird on the ground raises its wings in two or three jerky steps, showing the white patches, then folds them. It has been suggested that this startles insects into moving, and that it is a territorial or anti-predator display. The honest answer is that the evidence is thin and no single explanation has been settled on. Watch it and enjoy it, but do not trust a confident story about why.

Aggression is better understood. Mockingbirds defend feeding territories in fall and winter, and a defended fruit bush or feeder may be held by one bird against all comers for months. They also defend nests fiercely in summer, dive-bombing cats, dogs and people who walk too close.

Nesting#

Pairs nest in dense shrubs and small trees, usually 3 to 10 ft (1 to 3 m) up, in hedges, brambles, junipers and ornamental plantings. The male builds the twig foundation, often starting several, and the female finishes the cup with grass, rootlets and sometimes bits of plastic and string.

Clutches are typically 2 to 6 pale blue-green eggs with heavy brown blotching. Incubation runs about 12 to 13 days and young leave the nest around 12 to 13 days after hatching, often before they can fly well. Two or three broods a season is normal in the South.

Population and conservation#

Northern Mockingbirds remain common and widespread and carry no conservation designation of concern. Long-running breeding surveys have shown a slow decline in parts of the range rather than any collapse, and the species is still expanding at its northern edge.

Yard-level risks are the ordinary ones: outdoor cats, which reach a ground-foraging bird easily, window collisions, and pesticide use that removes the insect supply nestlings depend on. The fixes are in window strikes and pesticides and birds.

A mockingbird setup that works#

1. Plant or keep native fruiting shrubs: hollies, wax myrtle, juniper, elderberry, viburnum, brambles.
2. Put an open tray where you can see it and stock it with halved fruit, softened raisins or soaked mealworms rather than seed.
3. Add crumbled suet or a fat spread from November through February, when wild fruit runs low.
4. Keep a shallow, clean bird bath running year-round; mockingbirds use water more than most feeder birds.
5. If one bird is monopolizing the station, add a second feeder out of its line of sight rather than trying to drive it off.
6. Accept the night singing in spring. It is a temporary problem with no bird-friendly solution.