The nesting instinct is proper to birds.

筑巢鸟类的本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本鸟类生活的观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕易与其他鸟类相混淆的。

In other words, these birds of a feather defrock together.

换句话说，这些鸟类一次性褪光所有羽毛的。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅者可能无意中破坏鸟类生活的脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起了公众对这种稀有鸟类的兴趣。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀鸟、椋鸟、秃、金丝雀、蜂虎和伯劳克鲁格常见鸟类中的典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到鸟类猎物时，通常先拔掉它们的羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查动物园制定鸟类驱虫方案奠定了基础。

Birds differ from mammals.

鸟类与哺乳动物同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁鸟的求偶鸟类中最复杂、最有活力的。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭类、麻雀和喜鹊等鸟类作指示生物监测环境中的重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个例子鸟类从兽角亚目的恐龙进化期间羽毛的出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜鸟类马达加斯加潜鸭的任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很易分辨的爱情鸟鸟类饲养中很少见的，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对鸟类来说重要的栖息地，而且温带森林里，小型的哺乳动物居住稠密的森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科鸟类湿地生态系统中重要的生物种类之一,也环境质量评价的一类指示动物。

The nesting instinct is proper to birds.

筑巢是鸟的本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟指南。

He's just published observations on Japanese bird life.

他了关于日本鸟生活的观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他鸟相混淆的。

In other words, these birds of a feather defrock together.

换句话说，这些鸟是一次性褪光所有羽毛的。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意中破坏鸟生活的脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起了公众对这种稀有鸟的兴趣。

He found his vocation in ornithology.

他现自己适于专攻鸟学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀鸟、椋鸟、秃、金丝、蜂虎和伯劳是克鲁格常见鸟中的典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到鸟猎物时，通常是先拔掉它们的羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

鸟由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查为动物园制定鸟驱虫方案奠定了基础。

Birds differ from mammals.

鸟与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁鸟的求偶行为在鸟中是最复杂、最有活力的。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭、和喜鹊等鸟作为指示生物监测环境中的重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个例子是鸟在从兽角亚目的恐龙进化期间羽毛的出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜鸟马达加斯加潜鸭的任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很容易分辨的爱情鸟在鸟饲养中很少见的，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对鸟来说是重要的栖息地，而且在温带森林里，小型的哺乳动物居住在稠密的森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科鸟是湿地生态系统中重要的生物种之一,也是环境质量评价的一指示动物。

The nesting instinct is proper to birds.

筑巢是的本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本生活的观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他相混淆的。

In other words, these birds of a feather defrock together.

换句话说，这些是一次性褪光所有羽毛的。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意中破坏生活的脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起了公众对这种稀有的兴趣。

He found his vocation in ornithology.

他发现自己适于专攻学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀、椋、秃、金丝雀、蜂虎和伯劳是克鲁格常见中的典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到猎物时，通常是先拔掉它们的羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查为动物园制定驱虫方案奠定了基础。

Birds differ from mammals.

与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁的求偶行为在中是最复杂、最有活力的。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭、麻雀和喜作为示生物监测环境中的重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个例子是在从兽角亚目的恐龙进化期间羽毛的出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜马达加斯加潜鸭的任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很容易分辨的爱情在饲养中很少见的，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对来说是重要的栖息地，而且在温带森林里，小型的哺乳动物居住在稠密的森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科是湿地生态系统中重要的生物种之一,也是环境质量评价的一示动物。

The nesting instinct is proper to birds.

筑巢的本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆指南。

He's just published observations on Japanese bird life.

他刚刚发表关于日本生活的观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕不容易与其他相混淆的。

In other words, these birds of a feather defrock together.

换句话说，这些一次性褪光所有羽毛的。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意中破坏生活的脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起公众对这种稀有的兴趣。

He found his vocation in ornithology.

他发现自己适于专攻学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀、椋、秃、金丝雀、蜂虎和伯劳克鲁格常见中的典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到猎物时，通常先拔掉它们的羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查为动物园制驱虫方案奠础。

Birds differ from mammals.

与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁的求偶行为在中最复杂、最有活力的。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭、麻雀和喜鹊等作为指示生物监测环境中的重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个例子在从兽角亚目的恐龙进化期间羽毛的出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜马达加斯加潜鸭的任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很容易分辨的爱情在饲养中很少见的，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对来说重要的栖息地，而且在温带森林里，小型的哺乳动物居住在稠密的森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科湿地生态系统中重要的生物种之一,也环境质量评价的一指示动物。

The nesting instinct is proper to birds.

筑巢是鸟本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟指南。

He's just published observations on Japanese bird life.

刚刚表了关于日本鸟生活观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其鸟相混淆。

In other words, these birds of a feather defrock together.

换句话说，这些鸟是一次性褪光所有羽毛。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意破坏鸟生活脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起了公众对这种稀有鸟兴。

He found his vocation in ornithology.

现自己适于专攻鸟学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀鸟、椋鸟、秃、金丝雀、蜂虎和伯劳是克鲁格常见鸟典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到鸟猎物时，通常是先拔掉它们羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

鸟由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查为动物园制定鸟驱虫方案奠定了基础。

Birds differ from mammals.

鸟与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁鸟求偶行为在鸟是最复杂、最有活力。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭、麻雀和喜鹊等鸟作为指示生物监测环境重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化一个例子是鸟在从兽角亚目恐龙进化期间羽毛出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜鸟马达加斯加潜鸭任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很容易分辨爱情鸟在鸟饲养很少见，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对鸟来说是重要栖息地，而且在温带森林里，小型哺乳动物居住在稠密森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科鸟是湿地生态系统重要生物种之一,也是环境质量评价一指示动物。

The nesting instinct is proper to birds.

筑巢鸟类的本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本鸟类生活的观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕不容易与其他鸟类相混淆的。

In other words, these birds of a feather defrock together.

换句话说，这些鸟类一次性褪光所有羽毛的。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意中破坏鸟类生活的脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起了公众对这种稀有鸟类的兴趣。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀鸟、椋鸟、秃、金丝雀、蜂虎和伯劳克鲁格常见鸟类中的典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到鸟类猎物时，通常先拔掉它们的羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查为动物园制定鸟类驱虫方案奠定了基础。

Birds differ from mammals.

鸟类与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁鸟的求偶行为在鸟类中最复杂、最有活力的。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭类、麻雀和喜鹊等鸟类作为指示生物监测环境中的重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个鸟类在从兽角亚目的恐龙进化期间羽毛的出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜鸟类马达加斯加潜鸭的任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很容易分辨的爱情鸟在鸟类饲养中很少见的，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对鸟类来说重要的栖息地，而且在温带森林里，小型的哺乳动物居住在稠密的森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科鸟类湿地生态系统中重要的生物种类之一,也环境质量评价的一类指示动物。

The nesting instinct is proper to birds.

筑巢是鸟类的本。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本鸟类生活的观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他鸟类相混淆的。

In other words, these birds of a feather defrock together.

换句话说，这些鸟类是一次性褪光所有羽毛的。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者意中破坏鸟类生活的脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫疑问激起了公众对这种稀有鸟类的兴趣。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀鸟、椋鸟、秃、金丝雀、蜂虎和伯劳是克鲁格常见鸟类中的典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到鸟类猎物时，通常是先拔掉它们的羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

鸟类由产卵。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

调查为动物园制定鸟类驱虫方案奠定了基础。

Birds differ from mammals.

鸟类与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁鸟的求偶行为在鸟类中是最复杂、最有活力的。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭类、麻雀和喜鹊等鸟类作为指示生物监测环境中的重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个例子是鸟类在从兽角亚目的恐龙进化期间羽毛的出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜鸟类马达加斯加潜鸭的任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很容易分辨的爱情鸟在鸟类饲养中很少见的，而且很难。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对鸟类来说是重要的栖息地，而且在温带森林里，小型的哺乳动物居住在稠密的森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科鸟类是湿地生态系统中重要的生物种类之一,也是环境质量评价的一类指示动物。

The nesting instinct is proper to birds.

筑巢是鸟的本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟指南。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本鸟的观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他鸟相混淆的。

In other words, these birds of a feather defrock together.

换句话说，这些鸟是一次性褪光所有羽毛的。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意中破坏鸟的脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起了公众对这种稀有鸟的兴趣。

He found his vocation in ornithology.

他发现自己适于专攻鸟学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀鸟、椋鸟、秃、金丝雀、蜂虎和伯劳是克鲁格常见鸟中的典型品种。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到鸟猎物时，通常是先拔掉它们的羽毛，再把肉。

Birds reproduce by laying eggs.

鸟由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查为动物园制定鸟驱虫方案奠定了基础。

Birds differ from mammals.

鸟与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁鸟的求偶行为在鸟中是最复杂、最有力的。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野鹭、麻雀和喜鹊等鸟作为指示物监测环境中的重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个例子是鸟在从兽角亚目的恐龙进化期间羽毛的出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜鸟马达加斯加潜鸭的任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这种两种性别很容易分辨的爱情鸟在鸟饲养中很少见的，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对鸟说是重要的栖息地，而且在温带森林里，小型的哺乳动物居住在稠密的森林层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科鸟是湿地态系统中重要的物种之一,也是环境质量评价的一指示动物。

The nesting instinct is proper to birds.

筑巢是本能。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆指南。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本生活观察资料。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他相混淆。

In other words, these birds of a feather defrock together.

换句话说，这些是一次性褪光所有羽毛。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意中破坏生活脆弱环境。

The film has certainly piqued public interest in this rare bird.

这部影片毫无疑问激起了公众对这稀有兴趣。

He found his vocation in ornithology.

他发现自己适于专攻学。

Hornbills, starlings, vultures, rollers, bee-eaters and shrikes typify the ubiquitous avifauna of the Kruger.

犀、椋、秃、金丝雀、蜂虎和伯劳是克鲁格常见中典。

Peregrine falcons usually pluck the feathers and strip the flesh off their bird prey.

游隼捕到猎物时，通常是先拔掉它们羽毛，再把肉撕下来。

Birds reproduce by laying eggs.

由产卵繁殖。

This research provided scientific evidence for helminthicide program of ornamental birds in the Northern Forest Zoo.

该调查为动物园制定驱虫方案奠定了基础。

Birds differ from mammals.

与哺乳动物不同。

It's hard to find a bird with a more complex and energetic courtship behavior than the bowerbird.

园丁求偶行为在中是最复杂、最有活力。

Herons (Ardeidae), sparrows (Passerinae) and common magpies (Corvidae) are suggested as useful bioindicators of environmental pollution.

建议选择野生鹭、麻雀和喜鹊等作为指示生物监测环境中重金属污染。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化一个例子是在从兽角亚目恐龙进化期间羽毛出现。

A rescue mission to save one of the world’s rarest birds, the Madagascar Pochard, seems to have succeeded.

拯救世界上最珍惜马达加斯加潜鸭任务似乎已经取得成功。

This sexually dimorphic lovebird species is rarely seen in aviculture and is known to be difficult to breed.

这两性别很容易分辨爱情在饲养中很少见，而且很难繁殖。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对来说是重要栖息地，而且在温带森林里，小哺乳动物居住在稠密森林下层。

Ardeidae bird is one of important species belonging to wet land ecosystem, and regarded as indicator for environmental assessment.

鹭科是湿地生态系统中重要生物之一,也是环境质量评价一指示动物。