Breeding Birds 2014 - Tommy Thompson Park
... The census for Common Tern and Ring-billed Gull is conducted at the peak nesting period, typically the last week of May or the first week of June to determine their breeding population. The Common Tern colonies nest on four floating reef-rafts and one artificial island. The colonies can be subject t ...
... The census for Common Tern and Ring-billed Gull is conducted at the peak nesting period, typically the last week of May or the first week of June to determine their breeding population. The Common Tern colonies nest on four floating reef-rafts and one artificial island. The colonies can be subject t ...
link to seabird report - St Helena « Government
... Peaked Island and Egg Island. West Rocks Red-billed Tropicbird colony was also briefly monitored in 2004/05. Lot’s Wife nest monitoring started in 2009 and Blue Point started in 2010. Nest monitoring was conducted on an approximately monthly basis throughout the year. Each individual nest was given ...
... Peaked Island and Egg Island. West Rocks Red-billed Tropicbird colony was also briefly monitored in 2004/05. Lot’s Wife nest monitoring started in 2009 and Blue Point started in 2010. Nest monitoring was conducted on an approximately monthly basis throughout the year. Each individual nest was given ...
Breeding Australian pelican, Pelecanus conspicillatus, in the
... when the Coorong National Park Banding Program was implemented, under the auspices of the Australian Bird and Bat Banding Scheme (ABBBS). Bird bands were returned from most Australian States and as far away as the Gulf of Papua New Guinea (Kluske, 1996). In 1985, the total abundance (the total numbe ...
... when the Coorong National Park Banding Program was implemented, under the auspices of the Australian Bird and Bat Banding Scheme (ABBBS). Bird bands were returned from most Australian States and as far away as the Gulf of Papua New Guinea (Kluske, 1996). In 1985, the total abundance (the total numbe ...
Conservation Plan for the American Oystercatcher
... Conservation could include implementing beneficial management practices, such as restoration of nest and roost sites, controlling predation, and reducing disturbance. Education and outreach programs are needed throughout the species’s range, especially for beach users and urban planners. Training pr ...
... Conservation could include implementing beneficial management practices, such as restoration of nest and roost sites, controlling predation, and reducing disturbance. Education and outreach programs are needed throughout the species’s range, especially for beach users and urban planners. Training pr ...
Ground-nesting birds survey - Greenham and Crookham Commons
... Graph 2: FPG(8)s + control from FPG(5)n: from installation to post predation event ............................ 42 Graph 3: FPG(8)s + control from FPG(5)n: Close-up of predation event ............................................ 42 Graph 4: FPG(9)n + control from FPG(5)n: From installation to post p ...
... Graph 2: FPG(8)s + control from FPG(5)n: from installation to post predation event ............................ 42 Graph 3: FPG(8)s + control from FPG(5)n: Close-up of predation event ............................................ 42 Graph 4: FPG(9)n + control from FPG(5)n: From installation to post p ...
Management Guidelines for the Protection of Heronries in Ontario
... Alarming older young causes them to leave the nest and many fall to their deaths or become entangled in branches while scrambling through the vegetation (Bent, 1963; Teal, 1965; Wolford, 1966, Wiese and SmithKenneally, 1977). Young that stray from their own nests may also be attacked by other herons ...
... Alarming older young causes them to leave the nest and many fall to their deaths or become entangled in branches while scrambling through the vegetation (Bent, 1963; Teal, 1965; Wolford, 1966, Wiese and SmithKenneally, 1977). Young that stray from their own nests may also be attacked by other herons ...
Birdbook: Breeders - Westray and Papa Westray
... Fulmars are one of the longest lived of all birds with one ringed individual on Eynhallow retrapped 44 years after first being marked. They breed first at 6-10 years old and lay only one egg which they uniquely defend by spitting their oily stomach contents; accurate up to 8 feet range! Birds are pr ...
... Fulmars are one of the longest lived of all birds with one ringed individual on Eynhallow retrapped 44 years after first being marked. They breed first at 6-10 years old and lay only one egg which they uniquely defend by spitting their oily stomach contents; accurate up to 8 feet range! Birds are pr ...
birds - Center for Native and Urban Wildlife
... Cooper's Hawks, and American Crows have all been seen or suspected as predators of adult and young Burrowing Owls. Opossums, weasels, skunks and dogs feed on eggs and young. Nesting: Nests in cavities or burrows in the ground; may use former den of a mammal, or man-made boxes. Lays one brood per yea ...
... Cooper's Hawks, and American Crows have all been seen or suspected as predators of adult and young Burrowing Owls. Opossums, weasels, skunks and dogs feed on eggs and young. Nesting: Nests in cavities or burrows in the ground; may use former den of a mammal, or man-made boxes. Lays one brood per yea ...
Nesting Success of Birds in Different Silvicultural Treatments in
... Abstract: We examined nesting success and levels of nest predation and cowbird parasitism among five different silvicultural treatments: regenerating (3–6 years old ), mid-rotation (12–15 years old), and thinned (17–23 years old) pine plantations, single-tree selection, and late-rotation pine-hardwo ...
... Abstract: We examined nesting success and levels of nest predation and cowbird parasitism among five different silvicultural treatments: regenerating (3–6 years old ), mid-rotation (12–15 years old), and thinned (17–23 years old) pine plantations, single-tree selection, and late-rotation pine-hardwo ...
Protecting Malta`s wind chaser
... of males attracting females and vice versa. Using nest cameras, the project recorded the first known footage of Yelkouans copulating during this period (see http://www. lifeshearwaterproject.org.mt/en/ video). At this time new arrivals compete with the old birds for nesting sites and the nest site m ...
... of males attracting females and vice versa. Using nest cameras, the project recorded the first known footage of Yelkouans copulating during this period (see http://www. lifeshearwaterproject.org.mt/en/ video). At this time new arrivals compete with the old birds for nesting sites and the nest site m ...
2006_EC_Factors influencing the breeding
... Out estimates of the number of fledglings can have been biased in three ways. During the assessment, some birds flew away and might have been counted twice. It is also possible that fledglings move from their colony into other areas due to the territories not being guarded when the chicks are older. ...
... Out estimates of the number of fledglings can have been biased in three ways. During the assessment, some birds flew away and might have been counted twice. It is also possible that fledglings move from their colony into other areas due to the territories not being guarded when the chicks are older. ...
Detrimental effects of two widespread invasive ant species on
... lost [20% of tissue on their feet) weighed significantly less than uninjured chicks and did not fledge. It is unclear if the chicks were being preyed upon or stung in defense of nearby ant colonies. Radical changes in invasive ant populations have been noted, and booming ant populations could cause ...
... lost [20% of tissue on their feet) weighed significantly less than uninjured chicks and did not fledge. It is unclear if the chicks were being preyed upon or stung in defense of nearby ant colonies. Radical changes in invasive ant populations have been noted, and booming ant populations could cause ...
The impact of predation by introduced mammals on
... increased substantially since it was protected in 1922 (Marchant and Higgins, 1993), with the total population thought to have doubled in the past 30 years (Heather and Robertson, 1996). As with the pied oystercatcher, some new breeding habitat may have been created by human activities, such as burn ...
... increased substantially since it was protected in 1922 (Marchant and Higgins, 1993), with the total population thought to have doubled in the past 30 years (Heather and Robertson, 1996). As with the pied oystercatcher, some new breeding habitat may have been created by human activities, such as burn ...
habitat and nesting success of blue jays
... 1984). To the east are expansive citrus groves and to the west lies expansive improved pasture. Areas disturbed by human habitation, including lawns and roadsides, lie between Archbold and the citrus groves and comprise a few small areas within Archbold property. Our study site included all of Archb ...
... 1984). To the east are expansive citrus groves and to the west lies expansive improved pasture. Areas disturbed by human habitation, including lawns and roadsides, lie between Archbold and the citrus groves and comprise a few small areas within Archbold property. Our study site included all of Archb ...
First recorded breeding attempt of Red- footed
... The dimensions of the eggs found near the initial nest are consistent with known measurements of Red-footed Booby eggs; they are also larger than the expected size for Masked Booby (Nelson 1978) known to breed in the area (Bolton et al. 2011). It is uncertain if more than one pair attempted to nest ...
... The dimensions of the eggs found near the initial nest are consistent with known measurements of Red-footed Booby eggs; they are also larger than the expected size for Masked Booby (Nelson 1978) known to breed in the area (Bolton et al. 2011). It is uncertain if more than one pair attempted to nest ...
Volume 6, Number 4 - Winter 2000 - California Bluebird Recovery
... The implication for cavity-nesting birds could be severe. The Acorn Woodpecker, a primary cavity builder, depends on oaks for its existence. Widespread loss of oaks would severely impact the woodpeckers and secondarily all of the cavity-nesters that depend on the woodpecker cavities for their natura ...
... The implication for cavity-nesting birds could be severe. The Acorn Woodpecker, a primary cavity builder, depends on oaks for its existence. Widespread loss of oaks would severely impact the woodpeckers and secondarily all of the cavity-nesters that depend on the woodpecker cavities for their natura ...
The South Wiltshire Farmland Bird Project
... four in spring/summer and five in winter repeated over three separate years. The baseline year surveys were carried out in 2010/2011, the next survey is due to take place in 2015/6 with final surveys in 2020/21. This rigorous approach was chosen to allow the SWFBI to create its own Farmland Bird Ind ...
... four in spring/summer and five in winter repeated over three separate years. The baseline year surveys were carried out in 2010/2011, the next survey is due to take place in 2015/6 with final surveys in 2020/21. This rigorous approach was chosen to allow the SWFBI to create its own Farmland Bird Ind ...
Download #118 Nesting success and population status of the 'elepaio
... In recent years, populations of the 'Elepaio have been declining on all of the islands from which they are known, particularly in low elevation areas (Scott et a/, 1986). The population on O'ahu has been reduced to the point that it has recently been proposed as a candidate for listing as endangered ...
... In recent years, populations of the 'Elepaio have been declining on all of the islands from which they are known, particularly in low elevation areas (Scott et a/, 1986). The population on O'ahu has been reduced to the point that it has recently been proposed as a candidate for listing as endangered ...
marine turtles - Government of the Virgin Islands
... This is known as the “juvenile frenzy”. It’s unclear how hatchlings survive in their first “lost years”, but hatchlings of some species have been found in mats of seaweed floating far out in open ocean currents. ...
... This is known as the “juvenile frenzy”. It’s unclear how hatchlings survive in their first “lost years”, but hatchlings of some species have been found in mats of seaweed floating far out in open ocean currents. ...
BREEDING SPECIES OF WATERBIRDS ON 10 ISLANDS OF
... one colony with 44 nests around Gabreh Sheikh Karameh in Nakhilo and the second colony in the northern part of this island with 26 nests and totally in 70 nests in 2007. On the other four islands had bred in one colony. The biggest colony was on Sheedvar, 3450 pairs in 2004 (Table 4). An abundant br ...
... one colony with 44 nests around Gabreh Sheikh Karameh in Nakhilo and the second colony in the northern part of this island with 26 nests and totally in 70 nests in 2007. On the other four islands had bred in one colony. The biggest colony was on Sheedvar, 3450 pairs in 2004 (Table 4). An abundant br ...
An Analysis of Macaw Conservation Strategies at the Tambopata
... indistinguishable from one another. The size range for Macaws varies from the smallest species, the Red-shouldered Macaw, or Hahn’s Macaw (Diopsittaca nobilis), of 30-35 cm in length, to the largest, the Scarlet Macaw (Ara Macao), of 81-96 cm in length. More than half of a macaw’s length is attribu ...
... indistinguishable from one another. The size range for Macaws varies from the smallest species, the Red-shouldered Macaw, or Hahn’s Macaw (Diopsittaca nobilis), of 30-35 cm in length, to the largest, the Scarlet Macaw (Ara Macao), of 81-96 cm in length. More than half of a macaw’s length is attribu ...
Read or the paper here.
... being shorter and less dense than older stands, kilometres from their nest site to find producprobably aid accessibility and vigilance. This tive feeding grounds (Nowald 2001; Leito et al. generally corresponds with research undertaken 2006). In northern England, a similar figure of on the Continent ...
... being shorter and less dense than older stands, kilometres from their nest site to find producprobably aid accessibility and vigilance. This tive feeding grounds (Nowald 2001; Leito et al. generally corresponds with research undertaken 2006). In northern England, a similar figure of on the Continent ...
Blue-winged Teal Blue-winged Teal Minnesota Conservation
... 10.40% in 2008. All statistics are for Blue-winged Teal and Cinnamon Teal combined (because in the fall the birds are indistinguishable). Harvest of Blue-winged Teal is relatively low in Canada and controlled in the U.S. by altering annual hunting season regulations in response to annual spring br ...
... 10.40% in 2008. All statistics are for Blue-winged Teal and Cinnamon Teal combined (because in the fall the birds are indistinguishable). Harvest of Blue-winged Teal is relatively low in Canada and controlled in the U.S. by altering annual hunting season regulations in response to annual spring br ...
Document
... Common Ragweed (Ambrosia artemisiifolia), and Giant Ragweed (Ambrosia trifida). Four additional borders of varying widths (15m40m) were established with an identical vegetative treatment. Nineteen control field borders were selected in locations as similar as possible to the treated borders, and rep ...
... Common Ragweed (Ambrosia artemisiifolia), and Giant Ragweed (Ambrosia trifida). Four additional borders of varying widths (15m40m) were established with an identical vegetative treatment. Nineteen control field borders were selected in locations as similar as possible to the treated borders, and rep ...
Aves (Birds): Strigiformes, Strigidae Burrowing Owl (Athene
... Burrowing owls begin nesting in spring in burrows that they line with cow, horse, or bison (Bison bison) dung [63]….The female does all incubation and brooding [28]. Clutch size is large, from 6 to 11 eggs [31], with an average of 6.5 eggs [51]. Eggs are laid at intervals of 24 to 72 hours. Incubati ...
... Burrowing owls begin nesting in spring in burrows that they line with cow, horse, or bison (Bison bison) dung [63]….The female does all incubation and brooding [28]. Clutch size is large, from 6 to 11 eggs [31], with an average of 6.5 eggs [51]. Eggs are laid at intervals of 24 to 72 hours. Incubati ...
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.