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Great blue herons build a bulky stick nest. Nests are usually around 50 cm (20 in) across when first constructed, but can grow to more than 120 cm (47 in) in width and 90 cm (35 in) deep with repeated use and additional construction. [42] If the nest is abandoned or destroyed, the female may lay a replacement clutch.
Trees and bushes are the preferred location for nests, the herons will usually build in high branches away from the trunk. A pair can use the same nest for years, enlarging it every season; the first nest is usually just large enough to hold the eggs. Nest-building is not the result of successful courtship, but rather an active part of the ...
If you spot a great blue heron, here are some helpful tips for expert bird watching, and a few things you definitely should not do.
Its breeding season coincides generally with the start of the rainy season, which is around November to March. In some areas, breeding is year around, with no discernable peak season. Breeding may not occur every year. Fairly adaptable in their nesting site selection, Goliath herons generally prefer to nest on islands or islands of vegetation.
In these populations, the breeding season is determined by rainfall and consequent prey availability. [4] [5] [6] Green herons are seasonally monogamous. The pairs form in the breeding range, after an intense courtship display by the males, who select the nesting sites and fly in front of the female noisily and with puffed-up head and neck plumage.
Herons' bills and other bare parts of the body are usually yellow, black, or brown in colour, although this can vary during the breeding season. The wings are broad and long, exhibiting 10 or 11 primary feathers (the boat-billed heron has only nine), 15–20 secondaries, and 12 rectrices (10 in the bitterns).
A beaver pond along Ellerbe Creek is home to a thriving population of great blue herons and egrets. One day a road could cut through it. State proposes preserving Durham heron nesting grounds.
Pair at nest in Kolkata, West Bengal, India Indian pond heron with bright red legs in breeding season. The breeding season begins with the onset of the monsoons. They nest in small colonies, often with other wading birds, usually on platforms of sticks in trees or shrubs. Most nests are built at a height of about 9 to 10 m in large leafy trees.