Bringing Back the Birds

[Music]

thank you

[Applause]

have you ever been awake early enough to

see the sunrise

now what about experiencing the sunrise

through

sound i’m not sure

there’s anything comparable to the sound

of sunrise the sound of endless bird

song

just echoing across the landscape that

surrounds you

as a conservation biologist with the

smithsonian

i feel fortunate to be able to

experience the sunrise

on a regular basis through my research

on farms with birds

so today i invite you to take a walk

with me on some of the virginia farms

where i do my research

my mornings usually start out in a

rolling meadow

and the mist is just rising off the tips

of the grasses into a cotton candy sky

the first song we usually hear is that

of a field sparrow

it’s a tiny brown sparrow with buffy

cheeks

and a peach beak whose song completely

changes after the sunrise to mimic

the sound of a ping-pong ball bouncing

off

of a table you may hear a grasshopper

sparrow

buzzing from the depths of the grasses

or the classic witchity witchy witchy

of the common yellow throat singing from

a nearby wetland

you’ll likely hear a really strong

conclary

of the male red-winged blackbird whose

territory can contain anywhere from

five to fifteen females

and if you’re lucky you’ll hear the

bubbly song

of the bobbling

we like to call this the r2d2

of the bird world so miraculously these

birds can sing

multiple notes at once and it makes one

bird

sound like an entire flock and if you’re

really lucky

you’ll hear this the long

lost call of the bobwhite quail

or the haunting haunting call of the

eastern

meadowlark now this song symbolizes

pristine contiguous grassland habitat

and the meadowlark is one of those first

songs that indicates that spring is

right around the corner now what if one

day

these songs go silent

so one by one that dawn chorus

loses its momentum so one less field

sparrow

two fewer red-winged blackbirds five

fewer meadowlarks until

silence

this is what’s happening to our birds

right now

a recent study has shown that we’ve lost

nearly

three billion birds since 1970

with grassland birds those birds that

are living on our farms

they’ve taken the hardest hit so 700

million

individuals across 31 species of

grassland

birds are just gone

in the last 50 years that’s it

50 years

so for every five bobolinks that we had

in the 1970s

we now have two

we’ve lost 75 percent of our loggerhead

strikes

now these are a robin sized predatory

songbird

that are known for actually impaling

their prey

on barbed wire fences and thorns so we

also call them the butcher bird

we have less than a hundred remaining

here in virginia

and my personal favorite the eastern

meadowlark

for every four meadowlarks we had in the

1970s

we now have one

so what’s happening what is going on

with our birds

habitat loss and agricultural

intensification

are the most significant drivers causing

this decline

so grassland birds they actually nest

directly on the ground

so a single hay harvest can kill over

95 percent of the babies in that field

these birds are also facing threats from

pesticide use outdoor cats and

even climate change

but why should we care i mean why do

birds matter

for one the health of our bird community

directly reflects the health of our

planet

for every species we lose we

lose resiliency making our planet

less adaptable to change

birds also provide several important

services to

all of us they pollinate our plants

they they eat our agricultural pests

they disperse

our seeds they plant our trees

and through all of these actions they

are constantly replenishing

the soil with nutrients the soil that

supports our very livelihoods

and not only these things but these

birds just

ignite our souls they inspire fashion

technology music literature

they connect us to nature

and they connect us to each other

so where do we even start how do we help

to start we need to know where these

birds are

so we can provide them the support they

need

research has shown that more than 80

percent

of grassland bird distribution actually

falls on private lands

so the rolling hay fields and pastures

that make our countryside

so picturesque those fields

that support the livelihoods of our

neighbors

our farming families these are the homes

of our grassland birds too

so in order to successfully implement

conservation for these species

we have to facilitate a model that works

for

both birds and people

in a small town of front royal virginia

a team of smithsonian biologists is

collaborating with a growing

network of private citizens to do just

that i run a program called virginia

working landscapes

or vwl based out of the smithsonian’s

conservation biology institute

we collaborate with a network of more

than 75

citizen scientists and over 150

private landowners and together we’re

studying biodiversity

on private lands so our birds our bees

our plants our soils and through this

network

i am constantly enthralled by the

conservation efforts being put forth by

our farming community

they truly are the ambassadors

of grassland bird conservation so now

i’d like to introduce you to a few of

the farms that i work with

and show you some of the conservation

practices that they’ve implemented on

their properties

now this is a farm in fauquier county

virginia

this is literally less than an hour from

where we stand in washington dc

here today this farm has spent the last

decade

establishing over 300 acres

of native grasses and wildflowers

amongst a working

cattle operation now these meadows are

really well known for pollinator

conservation

but they’re also critical bird habitat

our citizen scientists have documented

over 75

species in and around these fields

including

bobwhite quail blue grow speaks

and yellow breasted chats it’s truly a

mecca

for breeding birds in the spring and

summer

and it’s also excellent wintering

habitat

so our research has shown that birds

that come here to stay for the winter

rely so heavily on these native

grasslands for food

and cover through some of their most

vulnerable months

so it’s incredibly encouraging to know

that we have farmers right here in our

region

that are providing habitat for these

birds year round

now moving over to warren county this

farm produces over

30 000 bales of hay for the local

equestrian community

every year it also happens to produce

the region’s largest crop of bubblings

now these bubble links nest directly on

the ground so when the fields are hayed

it can have severe impacts on the

reproductive success

of these birds but the farmers here have

recognized

the rarity of this species and they’ve

set aside

several fields every year where they

actually alter the timing

of their hay harvests to accommodate the

baby birds

so they actually have time to leave the

nests

in the last 10 years we’ve been doing

surveys at this farm

we’ve seen the bobbling population

expand from one field

to the entire farm to farms up and down

the road

it’s been so rewarding and has also just

been

a great example of scientists working

together

with farmers to study and optimize

conservation

on private working lands

now this is a farm in augusta county

virginia

where cattle are rotated through

pastures

using a method called rotational grazing

now this practice is really well known

for regenerating soil health

and boosting vegetation productivity by

resting pastures in between bouts of

grazing

now conveniently this practice also

provides

prime nesting structure for grassland

birds

and those periods of rest between the

grazing

allow ample opportunities for the birds

to fledge out their young

and the birds are taking notice so our

citizen scientists have documented

some of our region’s most rare grassland

birds

breeding on this farm including dick

sissels

and our butcher birds the loggerhead

trikes

so these practices i’ve shared with you

establishing native meadows

altering your timing of hay harvests to

accommodate birds nesting

and rotational grazing these are all

critical actions

that farmers can and do take

to support grassland birds on their

farms

but you might be wondering how can you

help

if you don’t live on a farm how can you

support the birds in your own yard

as well as in the rural communities that

surround your neighborhoods

for one plant native plants

a recent study of chickadees showed that

an urban yard

needs to consist of at least 70 percent

native plants in order to sustain a

stable population of birds

now this is because native plants host a

variety of nutritious insects

that our birds need to feed themselves

as well as their

babies throughout the breeding season so

i encourage all of you

to take an inventory of the plants in

your yard

replace the non-natives with native

plants

embrace the bugs ditch the lawn

chemicals

if you do all of these things you won’t

even need a bird feeder

i promise you could take it a little

step further by adding things like

nesting boxes to your yard or water

features

but i will say please please

don’t attract birds to your yard in this

way

if you have outdoor cats

a study by some of my colleagues

actually showed that outdoor cats can

kill

an estimated 2 billion birds

in the u.s per year

and this includes some of our most

vulnerable grassland species

like this grasshopper sparrow i found

with a cat during one of my field

surveys just over the last couple of

months

so by keeping your cats indoors you’re

not only protecting the birds

but you’re protecting your beloved pets

from threats like diseases

animal attacks as well as road mortality

which can really

affect a family so while you’re at home

with your indoor cats who here enjoys

a morning cup of coffee

okay now who here is drinking bird

friendly coffee

yes bird friendly coffee actually exists

so traditional coffee farms grow their

coffee beans in full sun

and this requires the farmers to take

down valuable rainforest habitat

but bird-friendly coffee is actually

grown under shade trees

so the rain forest remains intact and

the birds have habitat

and these are the birds that breed right

here in dc

and migrate down to latin america for

the winter

so next time you’re shopping for coffee

look for the bird friendly label

now how many of you have heard of

citizen science

good with less funding being directed

towards

science researchers like myself are

relying more

and more in the knowledge and the

efforts put forth by citizen scientists

so through vwl i am so fortunate to work

with a cohort of more than 75

citizen scientists and this includes

educators

lawyers botanists entomologists

artists all dedicating time

and expertise to collecting data that

can help

us better understand our region’s

wildlife i

honestly i don’t know where we would be

without them

visit the national zoo here in dc or

other places so you can find out

which citizen science programs might be

available near you

and most importantly support your local

farmers

who practice sustainable agriculture and

nurture a conservation ethic

in their daily work get to know the

conservation practices that they’re

implementing on their farms

and around your communities for example

right here in virginia we have programs

that provide technical and financial

assistance

to farmers who want to fence their

cattle out of streams to improve water

quality

who want to create habitat for

pollinators and even bobwhite quail

and our research is showing that all of

these practices are benefiting a

whole suite of grassland birds too

donate to the programs and also share

your knowledge

that you learn from these programs with

your friends and your family

because ultimately we we the private

citizens

are the major stewards of our nation’s

remaining birds

our farmers in particular provide that

critical habitat

for the birds that need it the most our

grassland birds

together we have the ability

to lead change

if everyone here commits to one of the

simple actions

that i mentioned today we can make a

difference

we can bring birds back and we will

never

ever have to worry about experiencing

a silent sunrise

thank you

you

[音乐]

谢谢

[鼓掌]

你有没有早起

看日出

不知道

有什么能比得上

日出的声音 无尽的

鸟鸣回荡在天空

作为 smithsonian 的保护生物学家,您周围的风景

我很幸运能够

通过我对鸟类农场的研究定期体验日出,

所以今天我邀请您

和我一起去弗吉尼亚州的一些

农场散步 我做我的研究

我的早晨通常从

起伏的草地开始

,薄雾刚刚从草尖升起,

进入棉花糖的天空

我们通常听到的第一首歌

是麻雀的歌

它是一只棕色的小麻雀,脸颊呈浅褐色

和一个桃喙,它的歌声

在日出后完全改变,以模仿

乒乓球从桌子上弹起的声音,

你可能会听到一只蚱蜢

麻雀

从甲板上嗡嗡作响 草丛中

或常见的黄喉的经典女巫女巫

在附近的湿地唱歌,

你可能会听到

雄性红翅黑鹂的强烈呼喊声,它的

领地可以容纳

五到十五只雌性

,如果你 很幸运,你会听到

起泡的歌声

我们喜欢称之为

鸟类世界的 r2d2 如此神奇地这些

鸟可以同时唱出

多个音符,这让一只

听起来像整个羊群,如果你

真的很幸运

你会听到这

久违的美洲鹌鹑

的叫声或东部草原雀的令人难以忘怀的

叫声现在这首歌象征着

原始的连续草原栖息地,

而草原雀是最早的

歌曲之一,它表明春天

就在拐角处现在是什么 如果有

一天

这些歌声一首一首沉寂

,黎明合唱

失去了动力,所以少

一只麻雀,

少两只红翅黑鹂,

少五只草地雀,直到

si

这就是现在我们的鸟类正在发生的事情

最近的一项研究表明,自 1970 年以来,我们已经失去了

30 亿只

草原鸟类,这些

鸟类生活在我们的农场中,

它们受到的打击最为严重,因此

在 31 个地区有 7 亿人

在过去的 50 年里,草原鸟类的种类刚刚消失,现在已经是 50 年了,

所以对于我们在 1970 年代拥有的每五个 bobolinks,

我们现在有两个

我们已经失去了 75% 的红海雀

罢工

现在这些是知更鸟大小的掠食性

鸣禽 以实际上

将猎物刺穿

在带刺铁丝网和荆棘上而闻名,因此我们

也称它们为屠夫鸟,

我们在弗吉尼亚州只剩下不到一百只

,我个人最喜欢东部

草地雀,

我们在 1970 年代拥有的每四个草地雀

因此,我们的鸟类正在发生什么

栖息地丧失和农业

集约化

是导致这种下降的最重要驱动因素,

所以草原鸟类 因为它们实际上

直接在地上筑巢,

因此一次干草收获可以杀死

该田地中超过 95% 的婴儿

一方面,我们鸟类群落

的健康直接反映了我们

星球

的健康 我们失去的每一个物种 我们

失去了弹性 使我们的星球

更不适应改变

鸟类 也为我们所有人提供了一些重要的

服务

他们为我们的植物授粉

他们吃掉我们的农业害虫

他们散播

我们的种子 他们种植我们的

树木 通过所有这些行动

他们不断地

为土壤补充养分

支持我们生计

的土壤 不仅这些东西而且这些

鸟儿

点燃了我们的灵魂 他们激发了时尚

技术 音乐文学

他们将我们联系在一起 大自然

,它们将我们彼此联系起来,

所以我们甚至从哪里开始我们如何

帮助开始我们需要 t o 知道这些

鸟在哪里,

这样我们就可以为它们提供所需的支持

研究表明,超过 80

%

的草原鸟类分布实际上

落在私人土地上,

所以使我们的乡村风景如画的连绵起伏的干草场和

牧场 我们

邻居

的生计 我们的农业家庭 这些

也是我们草原鸟类的家园,

所以为了成功地

对这些物种实施保护,

我们必须

在弗吉尼亚州前皇家小镇的一个小镇上促进一种既适用于鸟类又适用于人们的模式

。 史密森尼生物学家正在

与越来越多

的私人公民网络合作

,我在史密森尼保护生物学研究所运行了一个名为弗吉尼亚

工作景观

或 vwl 的项目,

我们与

超过 75 名

公民科学家和 150 多名

私人土地所有者和 我们一起

研究私人土地上的生物多样性,所以我们的鸟是我们的 b 是

我们的植物,我们的土壤,通过这个

网络,

我一直

被我们农业社区所做的保护工作所吸引,

他们确实

是草原鸟类保护的大使,所以现在

我想向您介绍一些

我的农场 与他们合作

并向您展示

他们在他们的财产上实施的一些保护措施

现在这是弗吉尼亚州福基尔县的一个农场

这实际上距离我们今天在华盛顿特区的位置不到一个小时

这个农场在过去十年中已经度过了

在一个正在工作的

牛场中建立超过 300 英亩的原生草和野花 现在这些草地

以传粉媒介

保护

而闻名,但它们也是重要的鸟类栖息地,

我们的公民科学家已经记录

这些领域及其周围的 75 多种物种,

包括

蓝白鹌鹑 会说话

和黄胸聊天 它确实是

春季和夏季繁殖鸟类的圣地

,它是 也是极好的越冬

栖息地,

所以我们的研究表明,

来这里过冬的鸟类

非常依赖这些原生

草原作为食物,

并在它们最脆弱的几个月里遮盖住

所以

得知我们这里有农民,真是令人鼓舞 我们

地区

常年为这些鸟类提供栖息地,

现在搬到沃伦县这个

农场每年

为当地马术社区生产超过 30 000 包干草

它也恰好生产

该地区最大的气泡作物

现在这些气泡链接直接筑巢

因此,当田地干草时,

它会对这些鸟类的繁殖成功产生严重影响,

但这里的农民已经

认识

到这个物种的稀有性,他们

每年都会留出几块田地,在那里他们

实际上改变了他们的时间

。 收割干草以容纳

幼鸟,

因此

在过去 10 年中,它们实际上有时间离开巢穴 一直

在这个农场进行调查,

我们看到摇摆不定的人口

从一个田地扩大

到整个农场,再到农场上下的农场,

这是非常有益的,也是

科学家

与农民合作研究和优化的一个很好的例子

现在保护私人工作用地 这是弗吉尼亚州奥古斯塔县的一个农场

,牛

使用一种称为轮牧的方法轮流穿过

牧场 方便的是,这种做法还

为草原鸟类提供了主要的筑巢结构,

在放牧之间的休息时间

为鸟类提供了充分的机会让它们的

幼鸟长出雏形

,鸟类正在引起注意,因此我们的

公民科学家记录

了我们地区一些最稀有的草原

鸟类

在这个农场繁殖,包括 dick

sissels

和我们的 b 乌彻鸟类赤蠵

三轮车

所以我已经与你分享了这些做法

建立原生草地

改变你的干草收获时间以

适应鸟类筑巢

和轮牧这些都是

农民可以而且确实采取的关键行动

来支持他们农场的草原鸟类,

但你 可能想知道,

如果你不住在农场,你怎么能提供帮助,你怎么能

在你自己的院子里

以及你社区周围的农村社区

支持一种植物本地

植物最近对山雀的研究表明

, 城市庭院

需要至少 70% 的

本地植物组成,以维持

稳定的鸟类种群,

这是因为本地植物拥有

各种营养丰富的昆虫

,我们的鸟类需要在整个繁殖季节喂养

自己和它们的

婴儿,所以

我鼓励

大家清点你院子里的植物,

用本地植物代替非本地

植物,

拥抱虫子 抛弃草坪

化学

品 如果您有户外猫,就不会以这种方式将鸟类吸引到您的院子里

,我的一些同事的一项研究

实际上表明,户外猫每年可以

杀死

美国大约 20 亿只鸟类

,其中包括一些我们最

脆弱的草原物种,

例如这样 在过去几个月的一次实地调查中,我发现蚱蜢麻雀

和一只猫在一起,

所以把你的猫放在室内,你

不仅可以保护鸟类

,还可以保护你心爱的宠物

免受疾病

动物攻击等威胁 因为道路

死亡率会真正

影响一个家庭,所以当你在家

和你的室内猫在一起时,他们在这里

享受早晨的一杯咖啡,

好吧,现在谁在这里喝鸟类

友好的咖啡

是的鸟 友好的咖啡实际上是存在的,

因此传统的咖啡农场

在充足的阳光下种植咖啡豆

,这需要农民

拆除宝贵的热带雨林栖息地,

但对鸟类友好的咖啡实际上是

在树荫下种植的,

因此雨林保持完整

,鸟类有栖息地

,这些 是在华盛顿特区繁殖

并迁徙到

拉丁美洲过冬的鸟类

吗?所以下次您购买咖啡时,请

寻找适合鸟类的标签,

现在你们中有多少人听说过

公民科学

好,资金较少

像我这样的科学研究人员

越来越依赖

公民科学家的知识和努力,

所以通过 vwl,我很幸运能

与超过 75 位

公民科学家一起工作,其中包括

教育工作者、

律师、植物学家、昆虫学家、

艺术家,他们都投入了时间

和 收集数据的专业知识,

可以帮助

我们更好地了解我们地区的

野生动物,

老实说,我不知道 不知道没有他们我们会在哪里

参观华盛顿特区或其他地方的国家动物园,

这样您就可以了解

您附近可能有哪些公民科学计划

,最重要的是支持您当地的

农民实践可持续农业并

在他们的 日常工作了解

他们在

农场

和您的社区周围实施的保护措施,

例如在弗吉尼亚州,我们有计划

希望将

牛围出溪流以改善水质的农民提供技术和财政援助

谁想为

传粉者甚至鹌鹑创造栖息地

,我们的研究表明,所有

这些做法都使

一整套草原鸟类受益

家庭,

因为最终我们我们这些私人

公民

是我们的主要管家 国家的

剩余鸟类

我们的农民特别为

最需要它的鸟类提供了重要的栖息地 我们的

草原鸟类

在一起

如果这里的每个人都致力于

我今天提到的简单行动之一 我们就有能力引领变革 我们可以有所作为

可以把鸟儿带回来,我们

永远不必担心

经历寂静的日出

谢谢