Tagus Estuary Natural Reserve breed on adjacent farmland. Little bustard ("Tetrax tetrax") occurs all year but is more numerous in winter. Raptors which may be seen over the fields include black-winged kite ("Elanus caeruleus"), short-toed eagle ("Circaetus gallicus") and booted eagle ("Aquila pennatus") Nearby patches of woodland hold short-toed treecreeper ("Certhia brachydactyla"), European nightjar ("Caprimulgus europaeus"), red-necked nightjar ("Caprimulgus ruficollis"), Iberian magpie ("Cyanopica cooki") and many passerines. During the Spring and Autumn many species stopover on the Tagus during their migration these include curlew sandpiper ("Calidris ferruginea") in large numbers with many other shorebirds in smaller numbers, Common redshank and Balck-tailed Godwits reach their
Solidago tarda Solidago tarda Solidago tarda, commonly known as Atlantic goldenrod, is a rare North American species of goldenrod in the sunflower family. It is found along the Atlantic coastal plain from New Jersey and Alabama, though nowhere very common. "Solidago tarda" is a perennial herb up to 180 cm (6 feet) tall, with a branching underground caudex or rhizomes. Leaves are elliptic or egg-shaped, up to 35 cm (14 inches) long near the base of the plant, shorter farther up the stem. One plant can produce as many as 50 small yellow flower heads in a narrow, elongate array at the