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A basic map of Loggerhead Key An abandoned building on Loggerhead Key. Loggerhead Key is an uninhabited tropical island within the Dry Tortugas group of islands in the Gulf of Mexico. [3] At approximately 49 acres (19.8 hectares) in size, it is the largest island of the Dry Tortugas.
The loggerhead shrike (Lanius ludovicianus) is a passerine bird in the family Laniidae. It is the only member of the shrike family endemic to North America ; the related northern shrike ( L. borealis ) occurs north of its range, however it is also found in Siberia.
The loggerhead kingbird has a length of 24 to 26 cm (9.4 to 10.2 in), and is a large species of kingbird with a heavy bill. It is two-toned dark upper parts and lighter underparts. The head, apart from the throat, is black with an orange patch on the topmost part of the crown which is rarely seen. [ 6 ]
Loggerhead musk turtle, the freshwater turtle Sternotherus minor; Loggerhead kingbird, the passerine bird Tyrannus caudifasciatus; Loggerhead shrike, the passerine bird Lanius ludovicianus; Loggerheads or Centaurea, a genus of flowering plants Common knapweed or loggerheads (Centaurea nigra), a flowering plant; Loggerhead sponge, a species of ...
Southwest Key, disappeared by 1875, today a shoal south off of Loggerhead Reef. Bird Key (formerly Booby Key), was about 1.5 km (0.93 mi) southwest of Garden Key, disappeared in 1935. Current names in the area are Bird Key Bank and Bird Key Harbor. The Key was the site of numerous Union soldiers' graves during the Civil War. [14]: 88
The loggerhead shrike can be distinguished from the northern shrike by its smaller size, darker grey plumage and larger black face mask that covers the eye completely. It also has a shorter bill with less prominent hook. Their calls are similar. [9] Measurements: [10] Length: 9.1–9.4 in (23–24 cm) Weight: 2.0–2.8 oz (57–79 g)
A species plate from The Crossley ID Guide: Eastern Birds, illustrating different plumages of the red knot. A field guide is a book designed to help the reader identify wildlife (flora or fauna or funga) or other objects of natural occurrence (e.g. rocks and minerals).
Population viability analysis (PVA) is a species-specific method of risk assessment frequently used in conservation biology.It is traditionally defined as the process that determines the probability that a population will go extinct within a given number of years.