贝氏黄喉地莺英文简介

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如题所述

Answer 1

The Belding's Yellowthroat, a captivating New World warbler, was discovered by the renowned biologist,贝尔。 Native to the southernmost regions of Baja California, Mexico, this bird holds a unique ecological niche.

Its breeding grounds are typically freshwater marshes and lagoons, characterized by the presence of cattails. The Belding's Yellowthroat builds its nest with dead cattail fibers, often attaching it to the lower stem of a living plant.雌性的巢通常包含2-4枚蛋，通常是3枚。这些小鸟在低矮的植被中觅食，主要食物包括昆虫和其他小型无脊椎动物。

The Belding's Yellowthroat stands at 14 cm in length, showcasing an olive-green back and striking yellow belly. The adult male of the southern race, G. b. beldingi, distinguishes itself with a yellow underbelly, black facemask, and a yellow forecrown. The female, while resembling the male, lacks the black mask and sports an olive-colored crown. Its appearance is similar to the Altamira Yellowthroat, yet their ranges are separated by the width of Mexico. Unfortunately, habitat loss has significantly impacted this race, limiting its presence to a few isolated marshes in southern Baja California, such as San Jose del Cabo and Todo Santos estero.

In contrast, the northern subspecies, G. b. goldmaii, has a paler belly and gray forecrown, resembling some non-migratory southwestern races of the Common Yellowthroat. However, their ranges do not overlap. This subspecies is larger and brighter than the migratory Common Yellowthroat varieties wintering in Baja California, with a distinctive mask that extends further onto the nape. Although still fairly common, habitat loss poses a threat to its range.

The bird's melodic song is a distinctive "wichety wichety wichety wich," deeper and fuller compared to the Common Yellowthroat's, occasionally punctuated with buzzing sounds. The call is a soft "jip," echoing the vocalization of the Common Yellowthroat.

This species bears the name Lyman Belding, a prominent California naturalist, in recognition of his significant contributions to the understanding and appreciation of its unique characteristics.