阿肯色州玫瑰琵鹭(Platalea ajaja)的分布和历史

C. Tumlison, G. Wills, Karen L. Rowe
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摘要

Roseatte Spoonbill(Platalea ajaja)是阿肯色州的一种稀有鸟类,直到1959年在阿肯色州西南部才有报道。通过使用公民科学的在线资源,我们阐明了这种鸟在阿肯色州的发生历史和季节分布的现状分析。个体最早在4月抵达阿肯色州,观测在8月达到峰值,当寒冷的天气促使鸟类向南迁徙时,这些鸟类可能会一直呆到10月下旬。大多数观测都是针对少数鸟类的,但在一个地点和时间最多统计了128只。看到的大多数鸟类都没有长出繁殖羽毛,因此被认为是在春季和夏季向北迁徙觅食的年轻鸟类。这些鸟已经在28个县被观察到,但大多数观察都在奇科特和德沙科斯。美国阿肯色州东南部,与密西西比河接壤。据报道,其他几种涉禽,如鹳、鹭、白鹭和朱鹭,在飞行或觅食时也有关联。巢于2020年在阿肯色州东南部的阿什利公司首次被发现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distribution and History of the Roseate Spoonbill (Platalea ajaja) in Arkansas
The Roseatte Spoonbill (Platalea ajaja) is a rare bird in Arkansas and was not reported from the state until 1959, when it was seen in southwestern Arkansas. By use of online sources for citizen science, we elucidate the history of occurrence and present analysis of seasonal distribution of this bird in Arkansas. Individuals arrive in Arkansas as early as April, observations peak in August, and the birds may remain to late October when colder weather promotes southward migration. Most observations are of a few birds, but a maximum of 128 has been counted at one location and time. Most of the birds seen had not developed breeding plumage so were believed to be younger birds migrating northward in spring and summer to forage. The birds have been observed in 28 counties, but most observations have been in Chicot and Desha Cos. of southeastern Arkansas, bordering the Mississippi River. Several other wading birds such as storks, herons, egrets, and ibis have been reported as associates in flight or foraging. Nesting was discovered for the first time in 2020, in Ashley Co. of southeastern Arkansas.
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