View contents and download Changing Seabird Management in Hawai‘i
... Abstract.—Fossil evidence indicates that diverse and abundant seabird communities were once found in the main Hawaiian Islands. However, these seabird populations have severely decreased, or even disappeared, as a result of human disturbance, habitat loss and predation from introduced mammals. Today ...
... Abstract.—Fossil evidence indicates that diverse and abundant seabird communities were once found in the main Hawaiian Islands. However, these seabird populations have severely decreased, or even disappeared, as a result of human disturbance, habitat loss and predation from introduced mammals. Today ...
Full Article - Notornis - Ornithological Society of New Zealand
... petrel (P. cinerea) and small unattended chicks of various albatross species (Sinclair 1980). This foraging technique provides an additional strategy to access food resources that otherwise may be difficult to procure, such as the targeting of larger prey (Ryan & Moloney 1991). While on Macquarie Is ...
... petrel (P. cinerea) and small unattended chicks of various albatross species (Sinclair 1980). This foraging technique provides an additional strategy to access food resources that otherwise may be difficult to procure, such as the targeting of larger prey (Ryan & Moloney 1991). While on Macquarie Is ...
Chapter 25 - Animal Demography Unit
... Island, where the development of Lüderitz harbour led to the extinction of the Shark Island colony. It is likely that these birds now breed at Penguin or Seal Island, but annual counts at these two harbour islands take place when Hartlaub’s Gulls do not breed. In addition, recent breeding population ...
... Island, where the development of Lüderitz harbour led to the extinction of the Shark Island colony. It is likely that these birds now breed at Penguin or Seal Island, but annual counts at these two harbour islands take place when Hartlaub’s Gulls do not breed. In addition, recent breeding population ...
Western Snowy Plover (Charadrius alexandrinus nivosus) Nest Site
... nests all establishing, maintaining, and hatching within the same time period. Therefore we feel it is reasonable to assume that these are all separate breeding birds (with the exception of a female or two who may have had two male partners) and not the individual preference of one re-nesting bird. ...
... nests all establishing, maintaining, and hatching within the same time period. Therefore we feel it is reasonable to assume that these are all separate breeding birds (with the exception of a female or two who may have had two male partners) and not the individual preference of one re-nesting bird. ...
cliff-nesting adaptations of the galapagos swallow
... stay in nest face toward locomotion when attacked flight movements “visual cliff” behavior feed from parental feeding call ...
... stay in nest face toward locomotion when attacked flight movements “visual cliff” behavior feed from parental feeding call ...
Nycticorax nycticorax - black-crowned night-heron
... forks of branches and in the open or deep in foliage (Davis 1993). In Michigan eggs can be found in early May, but the egg-laying season may extend into July, with colonies showing great asynchrony in nesting (Scharf et al. 1978). Scharf (1991) indicated that such a long breeding season is an adapta ...
... forks of branches and in the open or deep in foliage (Davis 1993). In Michigan eggs can be found in early May, but the egg-laying season may extend into July, with colonies showing great asynchrony in nesting (Scharf et al. 1978). Scharf (1991) indicated that such a long breeding season is an adapta ...
A global assessment of the conservation status of the American
... and global conservation importance. A total of 20 sites have been identified for H. p. palliatus, 5 for H. p. frazari, 10 for H. p. pitanay and 10 for H. p. durnfordi. No key sites were identified for H. p. galapagensis as it is found in low density scattered throughout the islands. Of these 45 site ...
... and global conservation importance. A total of 20 sites have been identified for H. p. palliatus, 5 for H. p. frazari, 10 for H. p. pitanay and 10 for H. p. durnfordi. No key sites were identified for H. p. galapagensis as it is found in low density scattered throughout the islands. Of these 45 site ...
NatioNal actioN PlaN for the coNservatioN of albatrosses
... without returning to harbor), and usually act in southern regions. There are great concerns about this fleet because its fishing capacity is much larger than other Brazilian ships, what may increase birds capture indexes. Line and hook fishing made by Espirito Santo State fleet – Itaipava Fleet: thi ...
... without returning to harbor), and usually act in southern regions. There are great concerns about this fleet because its fishing capacity is much larger than other Brazilian ships, what may increase birds capture indexes. Line and hook fishing made by Espirito Santo State fleet – Itaipava Fleet: thi ...
DOUBLE-CRESTED CORMORANTS - are they a cause for concern?
... takes about 4 days to complete. The sturdy nest is made of sticks and stems and is lined with leafy twigs, grasses and other debris. Cormorants nest both on the ground and in trees. The same nest may be reused the following year. One brood per year is most common, although a pair will re-nest if the ...
... takes about 4 days to complete. The sturdy nest is made of sticks and stems and is lined with leafy twigs, grasses and other debris. Cormorants nest both on the ground and in trees. The same nest may be reused the following year. One brood per year is most common, although a pair will re-nest if the ...
Birds - New York State Envirothon
... Conservation and Management Woodcock populations have been declining in the eastern United States for several decades. Annual spring surveys of their breeding grounds show that woodcock numbers in the eastern flyway and in New York have been falling by about 2 percent since the 1960s-a loss of over ...
... Conservation and Management Woodcock populations have been declining in the eastern United States for several decades. Annual spring surveys of their breeding grounds show that woodcock numbers in the eastern flyway and in New York have been falling by about 2 percent since the 1960s-a loss of over ...
Summary of Flatback turtle (Natator depressus)
... Queensland. It is currently listed as Vulnerable under the Environmental Protection and Biodiversity Conservation Act (EPBC) and Vulnerable under the Queensland Nature Conservation Act (NCA). This turtle is a species that feeds in the waters over the Australian continental shelf north to the Gulf of ...
... Queensland. It is currently listed as Vulnerable under the Environmental Protection and Biodiversity Conservation Act (EPBC) and Vulnerable under the Queensland Nature Conservation Act (NCA). This turtle is a species that feeds in the waters over the Australian continental shelf north to the Gulf of ...
The Importance of Maintaining Structure to Ring
... occurs immediately at the nest bowl. Ring-necked pheasant and most species of upland nesting waterfowl initiate nesting prior to the on-set of heavy new growth, therefore, residual structure maintained from previous years growth is often thought to be an important attribute of nesting cover (Snyder ...
... occurs immediately at the nest bowl. Ring-necked pheasant and most species of upland nesting waterfowl initiate nesting prior to the on-set of heavy new growth, therefore, residual structure maintained from previous years growth is often thought to be an important attribute of nesting cover (Snyder ...
Northern Royal albatross EN1.1 - Agreement on the Conservation of
... Diomedea sanfordi is a colonial, biennial-breeding species if successful in rearing a chick. Breeding birds return to colonies from late August to mid November. Non-breeding birds can be present from September to late May (L. Perriman pers. comm. 2009). Eggs are laid between 26 October and 1 Decembe ...
... Diomedea sanfordi is a colonial, biennial-breeding species if successful in rearing a chick. Breeding birds return to colonies from late August to mid November. Non-breeding birds can be present from September to late May (L. Perriman pers. comm. 2009). Eggs are laid between 26 October and 1 Decembe ...
The Reproductive Biology of the Diamondback Terrapin
... studies are those of Ernest (1971) and Burger and Montevecchi (1975). For comp3rative observ3tions to be valid, collecting effort must be equal between sample periods, a requirement which is not often met. Unstandardized collecting effort can easily produce biased results. ...
... studies are those of Ernest (1971) and Burger and Montevecchi (1975). For comp3rative observ3tions to be valid, collecting effort must be equal between sample periods, a requirement which is not often met. Unstandardized collecting effort can easily produce biased results. ...
Effect of human disturbance on long
... ABSTRACT. Land managers often respond to declining numbers of target species by creating additional areas of habitat. If these habitats are also subject to human disturbance, then their efforts may be wasted. The European Nightjar (Caprimulgus europaeus) is a ground-nesting bird that is listed as a ...
... ABSTRACT. Land managers often respond to declining numbers of target species by creating additional areas of habitat. If these habitats are also subject to human disturbance, then their efforts may be wasted. The European Nightjar (Caprimulgus europaeus) is a ground-nesting bird that is listed as a ...
138.1 KB - Charles Darwin Foundation
... Penguins, in their black and white tuxedos, ranging from the frozen seas Gf Antarctica to the warm desert islands of the Galapagos, have fascinated people. Scientists have endured dark Antarctic winters and isolation to study these curious, tame, and human-like birds. For example, in the early 1900s ...
... Penguins, in their black and white tuxedos, ranging from the frozen seas Gf Antarctica to the warm desert islands of the Galapagos, have fascinated people. Scientists have endured dark Antarctic winters and isolation to study these curious, tame, and human-like birds. For example, in the early 1900s ...
Table 6. Incubation success of Spoon-billed
... Individual color flagging allowed tracking breeding adults returning back to nesting sites every year. It was found that site fidelity is very high and all survived adults return to breed in the same site (Tomkovich, 1994). This allows estimating of annual SBS survival rate by tracking of previously ...
... Individual color flagging allowed tracking breeding adults returning back to nesting sites every year. It was found that site fidelity is very high and all survived adults return to breed in the same site (Tomkovich, 1994). This allows estimating of annual SBS survival rate by tracking of previously ...
DMS
... Experimental results suggest that chicks already have a well developed sense of smell before leaving the nest. ...
... Experimental results suggest that chicks already have a well developed sense of smell before leaving the nest. ...
Breeding Bird Protocol for Florida`s Shorebirds
... In Florida, the shorebird nesting season generally starts in mid-February and continues until mid-August, though nesting may begin earlier or end later in some years. We recommend surveying routes and checking sites (ground and rooftop) weekly as soon as birds start nesting until chicks become fligh ...
... In Florida, the shorebird nesting season generally starts in mid-February and continues until mid-August, though nesting may begin earlier or end later in some years. We recommend surveying routes and checking sites (ground and rooftop) weekly as soon as birds start nesting until chicks become fligh ...
Fisher`s guide to New Zealand coastal seabirds
... Islands, Poor Knights, Mokohinau Islands, islands off Great Barrier Island, the Coromandel Peninsula, White Island, west coast of the North Island, Tolaga Bay, Cape Kidnappers and Black Rocks. South Island breeding sites are at Farewell Spit, Marlborough Sounds and Little Solander Island. ...
... Islands, Poor Knights, Mokohinau Islands, islands off Great Barrier Island, the Coromandel Peninsula, White Island, west coast of the North Island, Tolaga Bay, Cape Kidnappers and Black Rocks. South Island breeding sites are at Farewell Spit, Marlborough Sounds and Little Solander Island. ...
A fisher`s guide: New Zealand coastal seabirds
... Islands, Poor Knights, Mokohinau Islands, islands off Great Barrier Island, the Coromandel Peninsula, White Island, west coast of the North Island, Tolaga Bay, Cape Kidnappers and Black Rocks. South Island breeding sites are at Farewell Spit, Marlborough Sounds and Little Solander Island. ...
... Islands, Poor Knights, Mokohinau Islands, islands off Great Barrier Island, the Coromandel Peninsula, White Island, west coast of the North Island, Tolaga Bay, Cape Kidnappers and Black Rocks. South Island breeding sites are at Farewell Spit, Marlborough Sounds and Little Solander Island. ...
Nesting Activity and Conservation Status of the
... experiencing serious threats to their survival and are considered internationally as species of conservation concern. Over-hunting for their shells and meat, the collection of eggs from turtle nests, threatened by coastal development, pollution and pathogens, global warming and fisheries impacts, co ...
... experiencing serious threats to their survival and are considered internationally as species of conservation concern. Over-hunting for their shells and meat, the collection of eggs from turtle nests, threatened by coastal development, pollution and pathogens, global warming and fisheries impacts, co ...
1991 Ants Ticks
... Common tern colonies in the temperate eastern United States are occupied only in summer. Colony sites range from low sand-bars, flooded during winter and hurricanes and possessing little vegetation, to larger, higher islands with extensive vegetation (Nisbet 1973; Duffy 1977). most common terns nest ...
... Common tern colonies in the temperate eastern United States are occupied only in summer. Colony sites range from low sand-bars, flooded during winter and hurricanes and possessing little vegetation, to larger, higher islands with extensive vegetation (Nisbet 1973; Duffy 1977). most common terns nest ...
Management of introduced animals in Galapagos
... with the first individuals of the Australian ladybird Rodolia cardinalis released in January 2002, simultaneously on Santa Cruz, San Cristóbal, southern Isabela and Floreana islands. Later, it was released on northern Isabela and uninhabited islands including Marchena, Pinta, Pinzón, Rábida, Genoves ...
... with the first individuals of the Australian ladybird Rodolia cardinalis released in January 2002, simultaneously on Santa Cruz, San Cristóbal, southern Isabela and Floreana islands. Later, it was released on northern Isabela and uninhabited islands including Marchena, Pinta, Pinzón, Rábida, Genoves ...
Fairy Tern information
... should not be used as a maximum distance over which breeding Fairy Terns will travel to catch fish while breeding, and they may well be able to forage over greater distances but probably not much greater. There are few data available for comparison. However the much larger Crested Tern may forage as ...
... should not be used as a maximum distance over which breeding Fairy Terns will travel to catch fish while breeding, and they may well be able to forage over greater distances but probably not much greater. There are few data available for comparison. However the much larger Crested Tern may forage as ...
Bermuda petrel
The Bermuda petrel (Pterodroma cahow) is a gadfly petrel. Commonly known in Bermuda as the cahow, a name derived from its eerie cries, this nocturnal ground-nesting seabird is the national bird of Bermuda, and a symbol of hope for nature conservation. For 330 years, it was thought to be extinct.The dramatic rediscovery in 1951 of eighteen nesting pairs made this a ""Lazarus species"", that is, a species found to be alive after having been considered extinct. This has inspired a book and two documentary films. A national programme to preserve the bird and restore the species has helped increase its numbers, but scientists are still working to enlarge its nesting habitat on the restored Nonsuch Island.