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'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。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

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

犀鸟、椋鸟、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见鸟类中的典型品种。

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毛的。

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。

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毛，再把肉撕下来。

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 nesting instinct is proper to birds.

筑巢是鸟类的本能。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

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。

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。

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。

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

对鸟类来说是重要的栖息地，而且在温带，小型的哺乳动物居住在稠密的下层。

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。

Birds differ from mammals.

鸟类与哺乳动物不同。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

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 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兴趣。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本鸟类生活观察资料。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

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

犀鸟、椋鸟、秃鹫、、蜂虎和伯劳是克鲁格常见鸟类典型品种。

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毛。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他鸟类相混淆。

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

游隼捕到鸟类猎物时，通常是先拔掉它们毛，再把肉撕下来。

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

徒步旅行者可能无意破坏鸟类生活脆弱环境。

The nesting instinct is proper to birds.

筑巢是鸟类本能。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

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

建议选择野生鹭类、麻和喜鹊等鸟类作为指示生物监测环境属污染。

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。

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类是最复杂、最有活力。

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。

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类在从兽角亚目恐龙进化期间毛出现。

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类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类饲养很少见，而且很难繁殖。

Birds differ from mammals.

鸟类与哺乳动物不同。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

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要生物种类之一,也是环境质量评价一类指示动物。

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的兴趣。

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。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆指南。

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

犀、椋、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见中的典型品种。

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

换句话说，这些是一次性褪光所有毛的。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他相混淆的。

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

游隼捕猎物时，通常是先拔掉它们的毛，再把肉撕下来。

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

徒步旅行者意中破坏生活的脆弱环境。

The nesting instinct is proper to birds.

筑巢是的本。

He found his vocation in ornithology.

他发现自己适于专攻学。

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。

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。

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。

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。

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。

Birds differ from mammals.

与哺乳动物不同。

Birds reproduce by laying eggs.

由产卵繁殖。

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指示动物。

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兴趣。

He's just published observations on Japanese bird life.

刚刚发表了关于日本生观察资料。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆指南。

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

犀、椋、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见中典型品种。

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

换句话说，这些是一次性褪光所有毛。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其相混淆。

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

游隼捕到猎物时，通常是先拔掉它们毛，再把肉撕下来。

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弱环境。

The nesting instinct is proper to birds.

筑巢是本能。

He found his vocation in ornithology.

发现自己适于专攻学。

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。

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。

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、最有力。

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，小型哺乳动物居住在稠密森林下层。

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.

这种两种性别很容易分辨爱情在饲养中很少见，而且很难繁殖。

Birds differ from mammals.

与哺乳动物不同。

Birds reproduce by laying eggs.

由产卵繁殖。

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种之一,也是环境质量评价一指示动物。

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

部影片毫无疑问激起了公众对有鸟类兴趣。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本鸟类生观察资料。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

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

犀鸟、椋鸟、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见鸟类中典型品。

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

换句话说，些鸟类是一次性褪光所有毛。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他鸟类相混淆。

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

游隼捕到鸟类猎物时，通常是先拔掉它们毛，再把肉撕下来。

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脆弱环境。

The nesting instinct is proper to birds.

筑巢是鸟类本能。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

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重金属污染。

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。

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类中是最复杂、最有。

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。

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类在从兽角亚目恐龙进化期间毛出现。

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类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.

两性别很容易分辨爱情鸟在鸟类饲养中很少见，而且很难繁殖。

Birds differ from mammals.

鸟类与哺乳动物不同。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

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生物类之一,也是环境质量评价一类指示动物。

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有鸟类的兴趣。

He's just published observations on Japanese bird life.

他刚刚发表了关于日本鸟类生的观察资料。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

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

犀鸟、椋鸟、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见鸟类中的典型品。

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毛的。

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。

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毛，再把肉撕下来。

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的脆弱环境。

The nesting instinct is proper to birds.

筑巢是鸟类的本能。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

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。

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。

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、最有的。

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。

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.

这两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。

Birds differ from mammals.

鸟类与哺乳动物不同。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

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类之一,也是环境质量评价的一类指示动物。

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'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。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

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

犀鸟、椋鸟、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见鸟类中的典型品种。

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毛的。

An adult Bateleur is an unmistakable bird.

成年短尾雕是与其他鸟类相混淆的。

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毛，再把肉撕下来。

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。

The nesting instinct is proper to birds.

是鸟类的本能。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

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中的重金属污染。

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。

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。

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。

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.

这种两种性别很分辨的爱情鸟在鸟类饲养中很少见的，而且很难繁殖。

Birds differ from mammals.

鸟类与哺乳动物同。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

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,也是环质量评价的一类指示动物。

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'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。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆指南。

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

犀、椋、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见中的典型品种。

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

换句话说，这是一次性褪光所有毛的。

An adult Bateleur is an unmistakable bird.

成年短尾雕是不容易与其他相混淆的。

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毛，再把肉撕下来。

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 nesting instinct is proper to birds.

筑巢是的本能。

He found his vocation in ornithology.

他发现自己适于专攻。

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

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。

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。

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。

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。

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。

Birds differ from mammals.

与哺乳动物不同。

Birds reproduce by laying eggs.

由产卵繁殖。

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指示动物。

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'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。

A Guide to the Birds of Britain and Europe.

英国和欧洲大陆鸟类指南。

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

犀鸟、椋鸟、秃鹫、金丝雀、蜂虎和伯劳是克鲁格常见鸟类中的典型品种。

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毛的。

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。

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毛，再把肉撕下来。

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 nesting instinct is proper to birds.

筑巢是鸟类的本能。

He found his vocation in ornithology.

他发现自己适于专攻鸟类学。

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。

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。

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。

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

林对鸟类来说是重要的栖息地，而且在林里，小型的哺乳动物居住在稠密的林下层。

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。

Birds differ from mammals.

鸟类与哺乳动物不同。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

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。